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  <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RindopepimutMember" xlink:label="RindopepimutMember" xlink:title="RindopepimutMember" />
    <link:label xlink:type="resource" xlink:label="label_RindopepimutMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RindopepimutMember" xml:lang="en-US" id="label_RindopepimutMember">Rindopepimut [Member]</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RindopepimutMember" xlink:to="label_RindopepimutMember_2" xlink:title="label: RindopepimutMember to label_RindopepimutMember" />
    <link:label xlink:type="resource" xlink:label="label_RindopepimutMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RindopepimutMember" xml:lang="en-US" id="label_RindopepimutMember_3">Represents the information related to Rindopepimut.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RindopepimutMember" xlink:to="label_RindopepimutMember_3" xlink:title="label: RindopepimutMember to label_RindopepimutMember" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PRFAgreementMember" xlink:label="PRFAgreementMember" xlink:title="PRFAgreementMember" />
    <link:label xlink:type="resource" xlink:label="label_PRFAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PRFAgreementMember" xml:lang="en-US" id="label_PRFAgreementMember">PRF Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PRFAgreementMember" xlink:to="label_PRFAgreementMember" xlink:title="label: PRFAgreementMember to label_PRFAgreementMember" />
    <link:label xlink:type="resource" xlink:label="label_PRFAgreementMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PRFAgreementMember" xml:lang="en-US" id="label_PRFAgreementMember_2">PRF</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PRFAgreementMember" xlink:to="label_PRFAgreementMember_2" xlink:title="label: PRFAgreementMember to label_PRFAgreementMember" />
    <link:label xlink:type="resource" xlink:label="label_PRFAgreementMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PRFAgreementMember" xml:lang="en-US" id="label_PRFAgreementMember_3">Details pertaining to the agreement with Paul Royalty Fund II, L.P. (PRF).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PRFAgreementMember" xlink:to="label_PRFAgreementMember_3" xlink:title="label: PRFAgreementMember to label_PRFAgreementMember" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RotarixRotavirusVaccineMember" xlink:label="RotarixRotavirusVaccineMember" xlink:title="RotarixRotavirusVaccineMember" />
    <link:label xlink:type="resource" xlink:label="label_RotarixRotavirusVaccineMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RotarixRotavirusVaccineMember" xml:lang="en-US" id="label_RotarixRotavirusVaccineMember">Rotarix Rotavirus Vaccine [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RotarixRotavirusVaccineMember" xlink:to="label_RotarixRotavirusVaccineMember" xlink:title="label: RotarixRotavirusVaccineMember to label_RotarixRotavirusVaccineMember" />
    <link:label xlink:type="resource" xlink:label="label_RotarixRotavirusVaccineMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RotarixRotavirusVaccineMember" xml:lang="en-US" id="label_RotarixRotavirusVaccineMember_2">Rotarix</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RotarixRotavirusVaccineMember" xlink:to="label_RotarixRotavirusVaccineMember_2" xlink:title="label: RotarixRotavirusVaccineMember to label_RotarixRotavirusVaccineMember" />
    <link:label xlink:type="resource" xlink:label="label_RotarixRotavirusVaccineMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RotarixRotavirusVaccineMember" xml:lang="en-US" id="label_RotarixRotavirusVaccineMember_3">Represents the information related to the product Rotarix rotavirus vaccine.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RotarixRotavirusVaccineMember" xlink:to="label_RotarixRotavirusVaccineMember_3" xlink:title="label: RotarixRotavirusVaccineMember to label_RotarixRotavirusVaccineMember" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:label="AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:title="AmountReceivedForRightToParticipateInCollaborativeArrangement" />
    <link:label xlink:type="resource" xlink:label="label_AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmountReceivedForRightToParticipateInCollaborativeArrangement" xml:lang="en-US" id="label_AmountReceivedForRightToParticipateInCollaborativeArrangement">Amount Received for Right to Participate in Collaborative Arrangement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:to="label_AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:title="label: AmountReceivedForRightToParticipateInCollaborativeArrangement to label_AmountReceivedForRightToParticipateInCollaborativeArrangement" />
    <link:label xlink:type="resource" xlink:label="label_AmountReceivedForRightToParticipateInCollaborativeArrangement_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AmountReceivedForRightToParticipateInCollaborativeArrangement" xml:lang="en-US" id="label_AmountReceivedForRightToParticipateInCollaborativeArrangement_2">Upfront fee received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:to="label_AmountReceivedForRightToParticipateInCollaborativeArrangement_2" xlink:title="label: AmountReceivedForRightToParticipateInCollaborativeArrangement to label_AmountReceivedForRightToParticipateInCollaborativeArrangement" />
    <link:label xlink:type="resource" xlink:label="label_AmountReceivedForRightToParticipateInCollaborativeArrangement_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AmountReceivedForRightToParticipateInCollaborativeArrangement" xml:lang="en-US" id="label_AmountReceivedForRightToParticipateInCollaborativeArrangement_3">Represents the amount received by the entity for the right to participate in a collaborative arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountReceivedForRightToParticipateInCollaborativeArrangement" xlink:to="label_AmountReceivedForRightToParticipateInCollaborativeArrangement_3" xlink:title="label: AmountReceivedForRightToParticipateInCollaborativeArrangement to label_AmountReceivedForRightToParticipateInCollaborativeArrangement" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:label="StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:title="StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement">Stock Issued During Period Value Issued for Collaborative Arrangement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:to="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:title="label: StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement to label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement_2">Equity investment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:to="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement_2" xlink:title="label: StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement to label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement_3">Represents the value of stock sold as an equity investment to obtain the right to participate in a collaborative arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" xlink:to="label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement_3" xlink:title="label: StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement to label_StockIssuedDuringPeriodValueIssuedForCollaborativeArrangement" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:label="PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:title="PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" />
    <link:label xlink:type="resource" xlink:label="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xml:lang="en-US" id="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived">Percentage of License Fee Due on Net Royalties Received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:to="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:title="label: PercentageOfLicenseFeeDueOnNetRoyaltiesReceived to label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" />
    <link:label xlink:type="resource" xlink:label="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xml:lang="en-US" id="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived_2">Percentage of license fee payable on net royalties received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:to="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived_2" xlink:title="label: PercentageOfLicenseFeeDueOnNetRoyaltiesReceived to label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" />
    <link:label xlink:type="resource" xlink:label="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xml:lang="en-US" id="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived_3">Percentage of license fee payable to third party on net royalties received.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" xlink:to="label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived_3" xlink:title="label: PercentageOfLicenseFeeDueOnNetRoyaltiesReceived to label_PercentageOfLicenseFeeDueOnNetRoyaltiesReceived" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PercentageOfInterestInNetRoyaltiesSold" xlink:label="PercentageOfInterestInNetRoyaltiesSold" xlink:title="PercentageOfInterestInNetRoyaltiesSold" />
    <link:label xlink:type="resource" xlink:label="label_PercentageOfInterestInNetRoyaltiesSold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PercentageOfInterestInNetRoyaltiesSold" xml:lang="en-US" id="label_PercentageOfInterestInNetRoyaltiesSold">Percentage of Interest in Net Royalties Sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageOfInterestInNetRoyaltiesSold" xlink:to="label_PercentageOfInterestInNetRoyaltiesSold" xlink:title="label: PercentageOfInterestInNetRoyaltiesSold to label_PercentageOfInterestInNetRoyaltiesSold" />
    <link:label xlink:type="resource" xlink:label="label_PercentageOfInterestInNetRoyaltiesSold_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PercentageOfInterestInNetRoyaltiesSold" xml:lang="en-US" id="label_PercentageOfInterestInNetRoyaltiesSold_2">Percentage of interest in net royalties sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageOfInterestInNetRoyaltiesSold" xlink:to="label_PercentageOfInterestInNetRoyaltiesSold_2" xlink:title="label: PercentageOfInterestInNetRoyaltiesSold to label_PercentageOfInterestInNetRoyaltiesSold" />
    <link:label xlink:type="resource" xlink:label="label_PercentageOfInterestInNetRoyaltiesSold_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PercentageOfInterestInNetRoyaltiesSold" xml:lang="en-US" id="label_PercentageOfInterestInNetRoyaltiesSold_3">Represents the percentage of interest in net royalties sold.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageOfInterestInNetRoyaltiesSold" xlink:to="label_PercentageOfInterestInNetRoyaltiesSold_3" xlink:title="label: PercentageOfInterestInNetRoyaltiesSold to label_PercentageOfInterestInNetRoyaltiesSold" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:label="PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:title="PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" />
    <link:label xlink:type="resource" xlink:label="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xml:lang="en-US" id="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances">Period for Right to Negotiate for Extension of Agreement Term under Certain Circumstances</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:to="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:title="label: PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances to label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" />
    <link:label xlink:type="resource" xlink:label="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xml:lang="en-US" id="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances_2">Period for right to negotiate to extend the agreement term</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:to="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances_2" xlink:title="label: PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances to label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" />
    <link:label xlink:type="resource" xlink:label="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xml:lang="en-US" id="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances_3">Represents the period for right to negotiate for extension of the agreement term under certain circumstances.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" xlink:to="label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances_3" xlink:title="label: PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances to label_PeriodForRightToNegotiateForExtensionOfAgreementTermUnderCertainCircumstances" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:label="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:title="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xml:lang="en-US" id="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany">Number of Multiples Class of Warrant or Right Condition on Exercise of Rights of Exercise Price Holder Can Receive in Common Stock Value of Acquiring Company</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:to="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:title="label: NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany to label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xml:lang="en-US" id="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany_2">Number of multiples of the exercise price that the Right holder has a right to receive in value of the acquiring company's common stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:to="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany_2" xlink:title="label: NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany to label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xml:lang="en-US" id="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany_3">Represents the number of multiples of the exercise price that the right holder has the right to receive in value of the acquiring entity's common stock.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" xlink:to="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany_3" xlink:title="label: NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany to label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInCommonStockValueOfAcquiringCompany" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StockOptionAndIncentivePlan2008Member" xlink:label="StockOptionAndIncentivePlan2008Member" xlink:title="StockOptionAndIncentivePlan2008Member" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionAndIncentivePlan2008Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockOptionAndIncentivePlan2008Member" xml:lang="en-US" id="label_StockOptionAndIncentivePlan2008Member">Stock Option and Incentive Plan 2008 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionAndIncentivePlan2008Member" xlink:to="label_StockOptionAndIncentivePlan2008Member" xlink:title="label: StockOptionAndIncentivePlan2008Member to label_StockOptionAndIncentivePlan2008Member" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionAndIncentivePlan2008Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockOptionAndIncentivePlan2008Member" xml:lang="en-US" id="label_StockOptionAndIncentivePlan2008Member_2">2008 Plan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionAndIncentivePlan2008Member" xlink:to="label_StockOptionAndIncentivePlan2008Member_2" xlink:title="label: StockOptionAndIncentivePlan2008Member to label_StockOptionAndIncentivePlan2008Member" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionAndIncentivePlan2008Member_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockOptionAndIncentivePlan2008Member" xml:lang="en-US" id="label_StockOptionAndIncentivePlan2008Member_3">Represents information pertaining to the 2008 Stock Option and Incentive Plan.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionAndIncentivePlan2008Member" xlink:to="label_StockOptionAndIncentivePlan2008Member_3" xlink:title="label: StockOptionAndIncentivePlan2008Member to label_StockOptionAndIncentivePlan2008Member" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_AmendmentDescription" xlink:label="AmendmentDescription" xlink:title="AmendmentDescription" />
    <link:label xlink:type="resource" xlink:label="label_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmendmentDescription" xml:lang="en-US" id="label_AmendmentDescription">Amendment Description</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentDescription" xlink:to="label_AmendmentDescription" xlink:title="label: AmendmentDescription to label_AmendmentDescription" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm">Terms of options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm_2">The period of time, from the grant date until the time at which the share-based option award expires.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm_2" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm_3">Share Based Compensation, Arrangements by Share Based Payment, Award, Options, Expiration Term</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm_3" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_AmendmentFlag" xlink:label="AmendmentFlag" xlink:title="AmendmentFlag" />
    <link:label xlink:type="resource" xlink:label="label_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmendmentFlag" xml:lang="en-US" id="label_AmendmentFlag">Amendment Flag</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentFlag" xlink:to="label_AmendmentFlag" xlink:title="label: AmendmentFlag to label_AmendmentFlag" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock">Share Based Compensation Arrangements by Share Based Payment Award, Options, Expiration Term for Holders of More than Ten Percent of Voting Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock_2">Terms of options granted to the holders of more than 10% of the voting stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock_2" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock_3">Represents the term of options granted to the holders of more than 10 percent of voting stock of the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock_3" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTermForHoldersOfMoreThanTenPercentOfVotingStock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock">Threshold percentage of voting stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock_2">Represents the threshold percentage of voting stock.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock_2" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock_3">Share Based Compensation, Arrangements by Share Based Payment, Award, Options, Threshold Percentage of Voting Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock_3" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsThresholdPercentageOfVotingStock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock">Share Based Compensation Arrangements by Share Based Payment Award, Options, Exercise Price as Percentage of Fair Market Value for Holders of More than Ten Percent of Voting Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock_2">Exercise price as a percentage of fair market value for options granted to the holders of more than 10% of the voting stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock_2" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock_3">Represents the exercise price as a percentage of the fair market for options granted to the holders of than 10 percent of voting stock of the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock_3" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValueForHoldersOfMoreThanTenPercentOfVotingStock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_LicenseAgreementsMember" xlink:label="LicenseAgreementsMember" xlink:title="LicenseAgreementsMember" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LicenseAgreementsMember" xml:lang="en-US" id="label_LicenseAgreementsMember">License Agreements [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsMember" xlink:to="label_LicenseAgreementsMember" xlink:title="label: LicenseAgreementsMember to label_LicenseAgreementsMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LicenseAgreementsMember" xml:lang="en-US" id="label_LicenseAgreementsMember_2">License agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsMember" xlink:to="label_LicenseAgreementsMember_2" xlink:title="label: LicenseAgreementsMember to label_LicenseAgreementsMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LicenseAgreementsMember" xml:lang="en-US" id="label_LicenseAgreementsMember_3">Details pertaining to the license agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsMember" xlink:to="label_LicenseAgreementsMember_3" xlink:title="label: LicenseAgreementsMember to label_LicenseAgreementsMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_MedarexIncMember" xlink:label="MedarexIncMember" xlink:title="MedarexIncMember" />
    <link:label xlink:type="resource" xlink:label="label_MedarexIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MedarexIncMember" xml:lang="en-US" id="label_MedarexIncMember">Medarex Inc [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MedarexIncMember" xlink:to="label_MedarexIncMember" xlink:title="label: MedarexIncMember to label_MedarexIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_MedarexIncMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_MedarexIncMember" xml:lang="en-US" id="label_MedarexIncMember_2">Medarex</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MedarexIncMember" xlink:to="label_MedarexIncMember_2" xlink:title="label: MedarexIncMember to label_MedarexIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_MedarexIncMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_MedarexIncMember" xml:lang="en-US" id="label_MedarexIncMember_3">Represents information related to Medarex, Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MedarexIncMember" xlink:to="label_MedarexIncMember_3" xlink:title="label: MedarexIncMember to label_MedarexIncMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RockefellerUniversityMember" xlink:label="RockefellerUniversityMember" xlink:title="RockefellerUniversityMember" />
    <link:label xlink:type="resource" xlink:label="label_RockefellerUniversityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RockefellerUniversityMember" xml:lang="en-US" id="label_RockefellerUniversityMember">Rockefeller University [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RockefellerUniversityMember" xlink:to="label_RockefellerUniversityMember" xlink:title="label: RockefellerUniversityMember to label_RockefellerUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RockefellerUniversityMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RockefellerUniversityMember" xml:lang="en-US" id="label_RockefellerUniversityMember_2">Rockefeller</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RockefellerUniversityMember" xlink:to="label_RockefellerUniversityMember_2" xlink:title="label: RockefellerUniversityMember to label_RockefellerUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RockefellerUniversityMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RockefellerUniversityMember" xml:lang="en-US" id="label_RockefellerUniversityMember_3">Represents information related to Rockefeller University.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RockefellerUniversityMember" xlink:to="label_RockefellerUniversityMember_3" xlink:title="label: RockefellerUniversityMember to label_RockefellerUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RockefellerUniversityMember_4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_RockefellerUniversityMember" xml:lang="en-US" id="label_RockefellerUniversityMember_4">Rockefeller University</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RockefellerUniversityMember" xlink:to="label_RockefellerUniversityMember_4" xlink:title="label: RockefellerUniversityMember to label_RockefellerUniversityMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ProductDevelopmentAndLicensingAgreementMember" xlink:label="ProductDevelopmentAndLicensingAgreementMember" xlink:title="ProductDevelopmentAndLicensingAgreementMember" />
    <link:label xlink:type="resource" xlink:label="label_ProductDevelopmentAndLicensingAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProductDevelopmentAndLicensingAgreementMember" xml:lang="en-US" id="label_ProductDevelopmentAndLicensingAgreementMember">Product Development and Licensing Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductDevelopmentAndLicensingAgreementMember" xlink:to="label_ProductDevelopmentAndLicensingAgreementMember" xlink:title="label: ProductDevelopmentAndLicensingAgreementMember to label_ProductDevelopmentAndLicensingAgreementMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ProductDevelopmentAndLicensingAgreementMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ProductDevelopmentAndLicensingAgreementMember" xml:lang="en-US" id="label_ProductDevelopmentAndLicensingAgreementMember_2">Arrangement under which the entity provides product development services, which may include manufacturing, in return for compensation and/or royalties as agreed between the parties.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductDevelopmentAndLicensingAgreementMember" xlink:to="label_ProductDevelopmentAndLicensingAgreementMember_2" xlink:title="label: ProductDevelopmentAndLicensingAgreementMember to label_ProductDevelopmentAndLicensingAgreementMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ProductDevelopmentAndLicensingAgreementMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProductDevelopmentAndLicensingAgreementMember" xml:lang="en-US" id="label_ProductDevelopmentAndLicensingAgreementMember_3">Development Services Agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductDevelopmentAndLicensingAgreementMember" xlink:to="label_ProductDevelopmentAndLicensingAgreementMember_3" xlink:title="label: ProductDevelopmentAndLicensingAgreementMember to label_ProductDevelopmentAndLicensingAgreementMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DukeUniversityBrainTumorCancerCenterMember" xlink:label="DukeUniversityBrainTumorCancerCenterMember" xlink:title="DukeUniversityBrainTumorCancerCenterMember" />
    <link:label xlink:type="resource" xlink:label="label_DukeUniversityBrainTumorCancerCenterMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DukeUniversityBrainTumorCancerCenterMember" xml:lang="en-US" id="label_DukeUniversityBrainTumorCancerCenterMember">Duke University Brain Tumor Cancer Center [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DukeUniversityBrainTumorCancerCenterMember" xlink:to="label_DukeUniversityBrainTumorCancerCenterMember" xlink:title="label: DukeUniversityBrainTumorCancerCenterMember to label_DukeUniversityBrainTumorCancerCenterMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DukeUniversityBrainTumorCancerCenterMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DukeUniversityBrainTumorCancerCenterMember" xml:lang="en-US" id="label_DukeUniversityBrainTumorCancerCenterMember_2">Duke</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DukeUniversityBrainTumorCancerCenterMember" xlink:to="label_DukeUniversityBrainTumorCancerCenterMember_2" xlink:title="label: DukeUniversityBrainTumorCancerCenterMember to label_DukeUniversityBrainTumorCancerCenterMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DukeUniversityBrainTumorCancerCenterMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DukeUniversityBrainTumorCancerCenterMember" xml:lang="en-US" id="label_DukeUniversityBrainTumorCancerCenterMember_3">Represents information related to Duke University Brain Tumor Cancer Center.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DukeUniversityBrainTumorCancerCenterMember" xlink:to="label_DukeUniversityBrainTumorCancerCenterMember_3" xlink:title="label: DukeUniversityBrainTumorCancerCenterMember to label_DukeUniversityBrainTumorCancerCenterMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_NatureOfBusinessAndOverviewLineItems" xlink:label="NatureOfBusinessAndOverviewLineItems" xlink:title="NatureOfBusinessAndOverviewLineItems" />
    <link:label xlink:type="resource" xlink:label="label_NatureOfBusinessAndOverviewLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NatureOfBusinessAndOverviewLineItems" xml:lang="en-US" id="label_NatureOfBusinessAndOverviewLineItems">Nature of Business and Overview [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NatureOfBusinessAndOverviewLineItems" xlink:to="label_NatureOfBusinessAndOverviewLineItems" xlink:title="label: NatureOfBusinessAndOverviewLineItems to label_NatureOfBusinessAndOverviewLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_NatureOfBusinessAndOverviewLineItems_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NatureOfBusinessAndOverviewLineItems" xml:lang="en-US" id="label_NatureOfBusinessAndOverviewLineItems_2">Basis of Presentation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NatureOfBusinessAndOverviewLineItems" xlink:to="label_NatureOfBusinessAndOverviewLineItems_2" xlink:title="label: NatureOfBusinessAndOverviewLineItems to label_NatureOfBusinessAndOverviewLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PatentCostsPolicyTextBlock" xlink:label="PatentCostsPolicyTextBlock" xlink:title="PatentCostsPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PatentCostsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PatentCostsPolicyTextBlock" xml:lang="en-US" id="label_PatentCostsPolicyTextBlock">Patent Costs Policy [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PatentCostsPolicyTextBlock" xlink:to="label_PatentCostsPolicyTextBlock" xlink:title="label: PatentCostsPolicyTextBlock to label_PatentCostsPolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PatentCostsPolicyTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PatentCostsPolicyTextBlock" xml:lang="en-US" id="label_PatentCostsPolicyTextBlock_2">Patent Costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PatentCostsPolicyTextBlock" xlink:to="label_PatentCostsPolicyTextBlock_2" xlink:title="label: PatentCostsPolicyTextBlock to label_PatentCostsPolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PatentCostsPolicyTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PatentCostsPolicyTextBlock" xml:lang="en-US" id="label_PatentCostsPolicyTextBlock_3">Disclosure of accounting policy for patent costs.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PatentCostsPolicyTextBlock" xlink:to="label_PatentCostsPolicyTextBlock_3" xlink:title="label: PatentCostsPolicyTextBlock to label_PatentCostsPolicyTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="AreaOfRealEstateProperty" xlink:title="AreaOfRealEstateProperty" />
    <link:label xlink:type="resource" xlink:label="label_AreaOfRealEstateProperty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AreaOfRealEstateProperty" xml:lang="en-US" id="label_AreaOfRealEstateProperty">Area of office space (in square feet)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AreaOfRealEstateProperty" xlink:to="label_AreaOfRealEstateProperty" xlink:title="label: AreaOfRealEstateProperty to label_AreaOfRealEstateProperty" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AreaOfRealEstateProperty_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AreaOfRealEstateProperty" xml:lang="en-US" id="label_AreaOfRealEstateProperty_2">Area of Real Estate Property</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AreaOfRealEstateProperty" xlink:to="label_AreaOfRealEstateProperty_2" xlink:title="label: AreaOfRealEstateProperty to label_AreaOfRealEstateProperty" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OtherIncomePolicyTextBlock" xlink:label="OtherIncomePolicyTextBlock" xlink:title="OtherIncomePolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_OtherIncomePolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherIncomePolicyTextBlock" xml:lang="en-US" id="label_OtherIncomePolicyTextBlock">Other Income [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherIncomePolicyTextBlock" xlink:to="label_OtherIncomePolicyTextBlock" xlink:title="label: OtherIncomePolicyTextBlock to label_OtherIncomePolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherIncomePolicyTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherIncomePolicyTextBlock" xml:lang="en-US" id="label_OtherIncomePolicyTextBlock_2">Other Income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherIncomePolicyTextBlock" xlink:to="label_OtherIncomePolicyTextBlock_2" xlink:title="label: OtherIncomePolicyTextBlock to label_OtherIncomePolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherIncomePolicyTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OtherIncomePolicyTextBlock" xml:lang="en-US" id="label_OtherIncomePolicyTextBlock_3">Disclosure of accounting policy for recognition of income due to transactions that are not part of on-going operations.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherIncomePolicyTextBlock" xlink:to="label_OtherIncomePolicyTextBlock_3" xlink:title="label: OtherIncomePolicyTextBlock to label_OtherIncomePolicyTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_BasisOfPresentationAbstract" xlink:label="BasisOfPresentationAbstract" xlink:title="BasisOfPresentationAbstract" />
    <link:label xlink:type="resource" xlink:label="label_BasisOfPresentationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BasisOfPresentationAbstract" xml:lang="en-US" id="label_BasisOfPresentationAbstract">Basis of Presentation [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfPresentationAbstract" xlink:to="label_BasisOfPresentationAbstract" xlink:title="label: BasisOfPresentationAbstract to label_BasisOfPresentationAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_BasisOfPresentationAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_BasisOfPresentationAbstract" xml:lang="en-US" id="label_BasisOfPresentationAbstract_2">Basis of Presentation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfPresentationAbstract" xlink:to="label_BasisOfPresentationAbstract_2" xlink:title="label: BasisOfPresentationAbstract to label_BasisOfPresentationAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_GlaxoSmithKlinePlcMember" xlink:label="GlaxoSmithKlinePlcMember" xlink:title="GlaxoSmithKlinePlcMember" />
    <link:label xlink:type="resource" xlink:label="label_GlaxoSmithKlinePlcMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_GlaxoSmithKlinePlcMember" xml:lang="en-US" id="label_GlaxoSmithKlinePlcMember">Glaxo</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GlaxoSmithKlinePlcMember" xlink:to="label_GlaxoSmithKlinePlcMember" xlink:title="label: GlaxoSmithKlinePlcMember to label_GlaxoSmithKlinePlcMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_GlaxoSmithKlinePlcMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_GlaxoSmithKlinePlcMember" xml:lang="en-US" id="label_GlaxoSmithKlinePlcMember_2">Represents information related to Glaxo SmithKline plc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GlaxoSmithKlinePlcMember" xlink:to="label_GlaxoSmithKlinePlcMember_2" xlink:title="label: GlaxoSmithKlinePlcMember to label_GlaxoSmithKlinePlcMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_GlaxoSmithKlinePlcMember_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GlaxoSmithKlinePlcMember" xml:lang="en-US" id="label_GlaxoSmithKlinePlcMember_3">Glaxo Smith Kline Plc [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GlaxoSmithKlinePlcMember" xlink:to="label_GlaxoSmithKlinePlcMember_3" xlink:title="label: GlaxoSmithKlinePlcMember to label_GlaxoSmithKlinePlcMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PfizerIncMember" xlink:label="PfizerIncMember" xlink:title="PfizerIncMember" />
    <link:label xlink:type="resource" xlink:label="label_PfizerIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PfizerIncMember" xml:lang="en-US" id="label_PfizerIncMember">Pfizer Inc [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PfizerIncMember" xlink:to="label_PfizerIncMember" xlink:title="label: PfizerIncMember to label_PfizerIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PfizerIncMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PfizerIncMember" xml:lang="en-US" id="label_PfizerIncMember_2">Pfizer</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PfizerIncMember" xlink:to="label_PfizerIncMember_2" xlink:title="label: PfizerIncMember to label_PfizerIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PfizerIncMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PfizerIncMember" xml:lang="en-US" id="label_PfizerIncMember_3">Represents information related to Pfizer Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PfizerIncMember" xlink:to="label_PfizerIncMember_3" xlink:title="label: PfizerIncMember to label_PfizerIncMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_LaboratoryEquipmentMember" xlink:label="LaboratoryEquipmentMember" xlink:title="LaboratoryEquipmentMember" />
    <link:label xlink:type="resource" xlink:label="label_LaboratoryEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LaboratoryEquipmentMember" xml:lang="en-US" id="label_LaboratoryEquipmentMember">Laboratory Equipment [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LaboratoryEquipmentMember" xlink:to="label_LaboratoryEquipmentMember" xlink:title="label: LaboratoryEquipmentMember to label_LaboratoryEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LaboratoryEquipmentMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LaboratoryEquipmentMember" xml:lang="en-US" id="label_LaboratoryEquipmentMember_2">Laboratory equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LaboratoryEquipmentMember" xlink:to="label_LaboratoryEquipmentMember_2" xlink:title="label: LaboratoryEquipmentMember to label_LaboratoryEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LaboratoryEquipmentMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LaboratoryEquipmentMember" xml:lang="en-US" id="label_LaboratoryEquipmentMember_3">Details pertaining to laboratory equipment.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LaboratoryEquipmentMember" xlink:to="label_LaboratoryEquipmentMember_3" xlink:title="label: LaboratoryEquipmentMember to label_LaboratoryEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LaboratoryEquipmentMember_4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_LaboratoryEquipmentMember" xml:lang="en-US" id="label_LaboratoryEquipmentMember_4">Laboratory Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LaboratoryEquipmentMember" xlink:to="label_LaboratoryEquipmentMember_4" xlink:title="label: LaboratoryEquipmentMember to label_LaboratoryEquipmentMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ManufacturingEquipmentMember" xlink:label="ManufacturingEquipmentMember" xlink:title="ManufacturingEquipmentMember" />
    <link:label xlink:type="resource" xlink:label="label_ManufacturingEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ManufacturingEquipmentMember" xml:lang="en-US" id="label_ManufacturingEquipmentMember">Manufacturing Equipment [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ManufacturingEquipmentMember" xlink:to="label_ManufacturingEquipmentMember" xlink:title="label: ManufacturingEquipmentMember to label_ManufacturingEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ManufacturingEquipmentMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ManufacturingEquipmentMember" xml:lang="en-US" id="label_ManufacturingEquipmentMember_2">Manufacturing equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ManufacturingEquipmentMember" xlink:to="label_ManufacturingEquipmentMember_2" xlink:title="label: ManufacturingEquipmentMember to label_ManufacturingEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ManufacturingEquipmentMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ManufacturingEquipmentMember" xml:lang="en-US" id="label_ManufacturingEquipmentMember_3">Details pertaining to manufacturing equipment.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ManufacturingEquipmentMember" xlink:to="label_ManufacturingEquipmentMember_3" xlink:title="label: ManufacturingEquipmentMember to label_ManufacturingEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ManufacturingEquipmentMember_4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_ManufacturingEquipmentMember" xml:lang="en-US" id="label_ManufacturingEquipmentMember_4">Manufacturing Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ManufacturingEquipmentMember" xlink:to="label_ManufacturingEquipmentMember_4" xlink:title="label: ManufacturingEquipmentMember to label_ManufacturingEquipmentMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="CurrentFiscalYearEndDate" xlink:title="CurrentFiscalYearEndDate" />
    <link:label xlink:type="resource" xlink:label="label_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CurrentFiscalYearEndDate" xml:lang="en-US" id="label_CurrentFiscalYearEndDate">Current Fiscal Year End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CurrentFiscalYearEndDate" xlink:to="label_CurrentFiscalYearEndDate" xlink:title="label: CurrentFiscalYearEndDate to label_CurrentFiscalYearEndDate" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="AwardTypeAxis" xlink:title="AwardTypeAxis" />
    <link:label xlink:type="resource" xlink:label="label_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AwardTypeAxis" xml:lang="en-US" id="label_AwardTypeAxis">Award Type [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AwardTypeAxis" xlink:to="label_AwardTypeAxis" xlink:title="label: AwardTypeAxis to label_AwardTypeAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CuraGenCorporationMember" xlink:label="CuraGenCorporationMember" xlink:title="CuraGenCorporationMember" />
    <link:label xlink:type="resource" xlink:label="label_CuraGenCorporationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CuraGenCorporationMember" xml:lang="en-US" id="label_CuraGenCorporationMember">Cura Gen Corporation [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CuraGenCorporationMember" xlink:to="label_CuraGenCorporationMember" xlink:title="label: CuraGenCorporationMember to label_CuraGenCorporationMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CuraGenCorporationMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CuraGenCorporationMember" xml:lang="en-US" id="label_CuraGenCorporationMember_2">CuraGen</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CuraGenCorporationMember" xlink:to="label_CuraGenCorporationMember_2" xlink:title="label: CuraGenCorporationMember to label_CuraGenCorporationMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CuraGenCorporationMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CuraGenCorporationMember" xml:lang="en-US" id="label_CuraGenCorporationMember_3">Represents information pertaining to CuraGen Corporation.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CuraGenCorporationMember" xlink:to="label_CuraGenCorporationMember_3" xlink:title="label: CuraGenCorporationMember to label_CuraGenCorporationMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:label="DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:title="DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xml:lang="en-US" id="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock">Debt Instrument, Principal Amount Denomination for Conversion into Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:to="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:title="label: DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock to label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xml:lang="en-US" id="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock_2">Principal amount of notes used for debt instrument conversion ratio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:to="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock_2" xlink:title="label: DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock to label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xml:lang="en-US" id="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock_3">The principal amount of notes used as denominator for purposes of computing the conversion ratio of convertible debt.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" xlink:to="label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock_3" xlink:title="label: DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock to label_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AccruedRoyaltyAndLicenseFeesCurrent" xlink:label="AccruedRoyaltyAndLicenseFeesCurrent" xlink:title="AccruedRoyaltyAndLicenseFeesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AccruedRoyaltyAndLicenseFeesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccruedRoyaltyAndLicenseFeesCurrent" xml:lang="en-US" id="label_AccruedRoyaltyAndLicenseFeesCurrent">Accrued Royalty and License Fees Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedRoyaltyAndLicenseFeesCurrent" xlink:to="label_AccruedRoyaltyAndLicenseFeesCurrent" xlink:title="label: AccruedRoyaltyAndLicenseFeesCurrent to label_AccruedRoyaltyAndLicenseFeesCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AccruedRoyaltyAndLicenseFeesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AccruedRoyaltyAndLicenseFeesCurrent" xml:lang="en-US" id="label_AccruedRoyaltyAndLicenseFeesCurrent_2">Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties and licenses. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedRoyaltyAndLicenseFeesCurrent" xlink:to="label_AccruedRoyaltyAndLicenseFeesCurrent_2" xlink:title="label: AccruedRoyaltyAndLicenseFeesCurrent to label_AccruedRoyaltyAndLicenseFeesCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AccruedRoyaltyAndLicenseFeesCurrent_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AccruedRoyaltyAndLicenseFeesCurrent" xml:lang="en-US" id="label_AccruedRoyaltyAndLicenseFeesCurrent_3">Accrued Royalty and License Fees</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedRoyaltyAndLicenseFeesCurrent" xlink:to="label_AccruedRoyaltyAndLicenseFeesCurrent_3" xlink:title="label: AccruedRoyaltyAndLicenseFeesCurrent to label_AccruedRoyaltyAndLicenseFeesCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AccruedResearchAndDevelopmentContractCostsCurrent" xlink:label="AccruedResearchAndDevelopmentContractCostsCurrent" xlink:title="AccruedResearchAndDevelopmentContractCostsCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AccruedResearchAndDevelopmentContractCostsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccruedResearchAndDevelopmentContractCostsCurrent" xml:lang="en-US" id="label_AccruedResearchAndDevelopmentContractCostsCurrent">Accrued Research and Development Contract Costs, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedResearchAndDevelopmentContractCostsCurrent" xlink:to="label_AccruedResearchAndDevelopmentContractCostsCurrent" xlink:title="label: AccruedResearchAndDevelopmentContractCostsCurrent to label_AccruedResearchAndDevelopmentContractCostsCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AccruedResearchAndDevelopmentContractCostsCurrent_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AccruedResearchAndDevelopmentContractCostsCurrent" xml:lang="en-US" id="label_AccruedResearchAndDevelopmentContractCostsCurrent_2">Accrued Research and Development Contract Costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedResearchAndDevelopmentContractCostsCurrent" xlink:to="label_AccruedResearchAndDevelopmentContractCostsCurrent_2" xlink:title="label: AccruedResearchAndDevelopmentContractCostsCurrent to label_AccruedResearchAndDevelopmentContractCostsCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AccruedResearchAndDevelopmentContractCostsCurrent_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AccruedResearchAndDevelopmentContractCostsCurrent" xml:lang="en-US" id="label_AccruedResearchAndDevelopmentContractCostsCurrent_3">Carrying value as of the balance sheet date of obligations incurred through that date and payable for research and development contract costs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedResearchAndDevelopmentContractCostsCurrent" xlink:to="label_AccruedResearchAndDevelopmentContractCostsCurrent_3" xlink:title="label: AccruedResearchAndDevelopmentContractCostsCurrent to label_AccruedResearchAndDevelopmentContractCostsCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentAmortizationPeriod" xlink:label="DebtInstrumentAmortizationPeriod" xlink:title="DebtInstrumentAmortizationPeriod" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAmortizationPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentAmortizationPeriod" xml:lang="en-US" id="label_DebtInstrumentAmortizationPeriod">Debt Instrument, Amortization Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAmortizationPeriod" xlink:to="label_DebtInstrumentAmortizationPeriod" xlink:title="label: DebtInstrumentAmortizationPeriod to label_DebtInstrumentAmortizationPeriod" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAmortizationPeriod_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentAmortizationPeriod" xml:lang="en-US" id="label_DebtInstrumentAmortizationPeriod_2">Amortization period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAmortizationPeriod" xlink:to="label_DebtInstrumentAmortizationPeriod_2" xlink:title="label: DebtInstrumentAmortizationPeriod to label_DebtInstrumentAmortizationPeriod" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAmortizationPeriod_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentAmortizationPeriod" xml:lang="en-US" id="label_DebtInstrumentAmortizationPeriod_3">Represents the amortization period of the debt instrument.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAmortizationPeriod" xlink:to="label_DebtInstrumentAmortizationPeriod_3" xlink:title="label: DebtInstrumentAmortizationPeriod to label_DebtInstrumentAmortizationPeriod" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DocumentAndEntityInformationAbstract" xlink:label="DocumentAndEntityInformationAbstract" xlink:title="DocumentAndEntityInformationAbstract" />
    <link:label xlink:type="resource" xlink:label="label_DocumentAndEntityInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentAndEntityInformationAbstract" xml:lang="en-US" id="label_DocumentAndEntityInformationAbstract">Document and Entity Information</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentAndEntityInformationAbstract" xlink:to="label_DocumentAndEntityInformationAbstract" xlink:title="label: DocumentAndEntityInformationAbstract to label_DocumentAndEntityInformationAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RevenueFromProductDevelopmentAndLicensingAgreements" xlink:label="RevenueFromProductDevelopmentAndLicensingAgreements" xlink:title="RevenueFromProductDevelopmentAndLicensingAgreements" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromProductDevelopmentAndLicensingAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenueFromProductDevelopmentAndLicensingAgreements" xml:lang="en-US" id="label_RevenueFromProductDevelopmentAndLicensingAgreements">Product Development and Licensing Agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromProductDevelopmentAndLicensingAgreements" xlink:to="label_RevenueFromProductDevelopmentAndLicensingAgreements" xlink:title="label: RevenueFromProductDevelopmentAndLicensingAgreements to label_RevenueFromProductDevelopmentAndLicensingAgreements" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromProductDevelopmentAndLicensingAgreements_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenueFromProductDevelopmentAndLicensingAgreements" xml:lang="en-US" id="label_RevenueFromProductDevelopmentAndLicensingAgreements_2">Revenue from Product Development and Licensing Agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromProductDevelopmentAndLicensingAgreements" xlink:to="label_RevenueFromProductDevelopmentAndLicensingAgreements_2" xlink:title="label: RevenueFromProductDevelopmentAndLicensingAgreements to label_RevenueFromProductDevelopmentAndLicensingAgreements" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromProductDevelopmentAndLicensingAgreements_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RevenueFromProductDevelopmentAndLicensingAgreements" xml:lang="en-US" id="label_RevenueFromProductDevelopmentAndLicensingAgreements_3">This element represents revenue from product development and licensing agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromProductDevelopmentAndLicensingAgreements" xlink:to="label_RevenueFromProductDevelopmentAndLicensingAgreements_3" xlink:title="label: RevenueFromProductDevelopmentAndLicensingAgreements to label_RevenueFromProductDevelopmentAndLicensingAgreements" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromProductDevelopmentAndLicensingAgreements_4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_RevenueFromProductDevelopmentAndLicensingAgreements" xml:lang="en-US" id="label_RevenueFromProductDevelopmentAndLicensingAgreements_4">Revenue related to the Rockefeller agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromProductDevelopmentAndLicensingAgreements" xlink:to="label_RevenueFromProductDevelopmentAndLicensingAgreements_4" xlink:title="label: RevenueFromProductDevelopmentAndLicensingAgreements to label_RevenueFromProductDevelopmentAndLicensingAgreements" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RevenueFromContractsAndGrants" xlink:label="RevenueFromContractsAndGrants" xlink:title="RevenueFromContractsAndGrants" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromContractsAndGrants_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenueFromContractsAndGrants" xml:lang="en-US" id="label_RevenueFromContractsAndGrants_2">Contracts and Grants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractsAndGrants" xlink:to="label_RevenueFromContractsAndGrants_2" xlink:title="label: RevenueFromContractsAndGrants to label_RevenueFromContractsAndGrants" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromContractsAndGrants_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenueFromContractsAndGrants" xml:lang="en-US" id="label_RevenueFromContractsAndGrants_3">Revenue from Contracts and Grants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractsAndGrants" xlink:to="label_RevenueFromContractsAndGrants_3" xlink:title="label: RevenueFromContractsAndGrants to label_RevenueFromContractsAndGrants" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromContractsAndGrants_4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RevenueFromContractsAndGrants" xml:lang="en-US" id="label_RevenueFromContractsAndGrants_4">This element represents revenue earned during the period arising from products sold or services provided under the terms of a contract. Also include revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractsAndGrants" xlink:to="label_RevenueFromContractsAndGrants_4" xlink:title="label: RevenueFromContractsAndGrants to label_RevenueFromContractsAndGrants" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromContractsAndGrants" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_RevenueFromContractsAndGrants" xml:lang="en-US" id="label_RevenueFromContractsAndGrants">Revenue related to the Rockefeller agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractsAndGrants" xlink:to="label_RevenueFromContractsAndGrants" xlink:title="label: RevenueFromContractsAndGrants to label_RevenueFromContractsAndGrants" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_SignificantRevenueArrangementsDisclosureAbstract" xlink:label="SignificantRevenueArrangementsDisclosureAbstract" xlink:title="SignificantRevenueArrangementsDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_SignificantRevenueArrangementsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SignificantRevenueArrangementsDisclosureAbstract" xml:lang="en-US" id="label_SignificantRevenueArrangementsDisclosureAbstract">REVENUE</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantRevenueArrangementsDisclosureAbstract" xlink:to="label_SignificantRevenueArrangementsDisclosureAbstract" xlink:title="label: SignificantRevenueArrangementsDisclosureAbstract to label_SignificantRevenueArrangementsDisclosureAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_SignificantRevenueArrangementsDisclosureTextBlock" xlink:label="SignificantRevenueArrangementsDisclosureTextBlock" xlink:title="SignificantRevenueArrangementsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantRevenueArrangementsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SignificantRevenueArrangementsDisclosureTextBlock" xml:lang="en-US" id="label_SignificantRevenueArrangementsDisclosureTextBlock">Significant Revenue Arrangements Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantRevenueArrangementsDisclosureTextBlock" xlink:to="label_SignificantRevenueArrangementsDisclosureTextBlock" xlink:title="label: SignificantRevenueArrangementsDisclosureTextBlock to label_SignificantRevenueArrangementsDisclosureTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_SignificantRevenueArrangementsDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_SignificantRevenueArrangementsDisclosureTextBlock" xml:lang="en-US" id="label_SignificantRevenueArrangementsDisclosureTextBlock_2">This element may be used to capture the complete disclosure pertaining to an entity's significant revenue contracts and arrangements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantRevenueArrangementsDisclosureTextBlock" xlink:to="label_SignificantRevenueArrangementsDisclosureTextBlock_2" xlink:title="label: SignificantRevenueArrangementsDisclosureTextBlock to label_SignificantRevenueArrangementsDisclosureTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_SignificantRevenueArrangementsDisclosureTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SignificantRevenueArrangementsDisclosureTextBlock" xml:lang="en-US" id="label_SignificantRevenueArrangementsDisclosureTextBlock_3">REVENUE</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantRevenueArrangementsDisclosureTextBlock" xlink:to="label_SignificantRevenueArrangementsDisclosureTextBlock_3" xlink:title="label: SignificantRevenueArrangementsDisclosureTextBlock to label_SignificantRevenueArrangementsDisclosureTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementDisclosureAbstract" xlink:label="CollaborativeArrangementDisclosureAbstract" xlink:title="CollaborativeArrangementDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementDisclosureAbstract" xml:lang="en-US" id="label_CollaborativeArrangementDisclosureAbstract">Rockefeller University</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementDisclosureAbstract" xlink:to="label_CollaborativeArrangementDisclosureAbstract" xlink:title="label: CollaborativeArrangementDisclosureAbstract to label_CollaborativeArrangementDisclosureAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="DocumentPeriodEndDate" xlink:title="DocumentPeriodEndDate" />
    <link:label xlink:type="resource" xlink:label="label_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentPeriodEndDate" xml:lang="en-US" id="label_DocumentPeriodEndDate">Document Period End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentPeriodEndDate" xlink:to="label_DocumentPeriodEndDate" xlink:title="label: DocumentPeriodEndDate to label_DocumentPeriodEndDate" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_WorkingCapital" xlink:label="WorkingCapital" xlink:title="WorkingCapital" />
    <link:label xlink:type="resource" xlink:label="label_WorkingCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WorkingCapital" xml:lang="en-US" id="label_WorkingCapital">Working Capital</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WorkingCapital" xlink:to="label_WorkingCapital" xlink:title="label: WorkingCapital to label_WorkingCapital" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_WorkingCapital_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WorkingCapital" xml:lang="en-US" id="label_WorkingCapital_2">Working capital</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WorkingCapital" xlink:to="label_WorkingCapital_2" xlink:title="label: WorkingCapital to label_WorkingCapital" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_WorkingCapital_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_WorkingCapital" xml:lang="en-US" id="label_WorkingCapital_3">Represents the working capital of the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WorkingCapital" xlink:to="label_WorkingCapital_3" xlink:title="label: WorkingCapital to label_WorkingCapital" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:label="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:title="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" />
    <link:label xlink:type="resource" xlink:label="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xml:lang="en-US" id="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable">Finite Lived and Indefinite Lived Intangible Assets by Major Class [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:title="label: FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable to label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xml:lang="en-US" id="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_2">Disclosure of the carrying value of purchased amortizable finite-lived intangible assets, including disclosure of the carrying value of indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_2" xlink:title="label: FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable to label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AmgenAmendmentMember" xlink:label="AmgenAmendmentMember" xlink:title="AmgenAmendmentMember" />
    <link:label xlink:type="resource" xlink:label="label_AmgenAmendmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmgenAmendmentMember" xml:lang="en-US" id="label_AmgenAmendmentMember">Amgen Amendment [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmgenAmendmentMember" xlink:to="label_AmgenAmendmentMember" xlink:title="label: AmgenAmendmentMember to label_AmgenAmendmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmgenAmendmentMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AmgenAmendmentMember" xml:lang="en-US" id="label_AmgenAmendmentMember_2">Amgen Amendment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmgenAmendmentMember" xlink:to="label_AmgenAmendmentMember_2" xlink:title="label: AmgenAmendmentMember to label_AmgenAmendmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmgenAmendmentMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AmgenAmendmentMember" xml:lang="en-US" id="label_AmgenAmendmentMember_3">Represents information pertaining to an amendment to the license agreement, Amgen Amendment.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmgenAmendmentMember" xlink:to="label_AmgenAmendmentMember_3" xlink:title="label: AmgenAmendmentMember to label_AmgenAmendmentMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CoreTechnologyMember" xlink:label="CoreTechnologyMember" xlink:title="CoreTechnologyMember" />
    <link:label xlink:type="resource" xlink:label="label_CoreTechnologyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CoreTechnologyMember" xml:lang="en-US" id="label_CoreTechnologyMember">Core Technology</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CoreTechnologyMember" xlink:to="label_CoreTechnologyMember" xlink:title="label: CoreTechnologyMember to label_CoreTechnologyMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CoreTechnologyMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CoreTechnologyMember" xml:lang="en-US" id="label_CoreTechnologyMember_2">Represents information pertaining to the core technology of the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CoreTechnologyMember" xlink:to="label_CoreTechnologyMember_2" xlink:title="label: CoreTechnologyMember to label_CoreTechnologyMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CoreTechnologyMember_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CoreTechnologyMember" xml:lang="en-US" id="label_CoreTechnologyMember_3">Core Technology [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CoreTechnologyMember" xlink:to="label_CoreTechnologyMember_3" xlink:title="label: CoreTechnologyMember to label_CoreTechnologyMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentLenderDomain" xlink:label="DebtInstrumentLenderDomain" xlink:title="DebtInstrumentLenderDomain" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLenderDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentLenderDomain" xml:lang="en-US" id="label_DebtInstrumentLenderDomain">Identification of the lender, who may be a single entity (for example, a bank, pension fund or venture capital firm) or a group of entities which participate in the debt instrument.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLenderDomain" xlink:to="label_DebtInstrumentLenderDomain" xlink:title="label: DebtInstrumentLenderDomain to label_DebtInstrumentLenderDomain" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLenderDomain_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentLenderDomain" xml:lang="en-US" id="label_DebtInstrumentLenderDomain_2">Debt Instrument, Lender [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLenderDomain" xlink:to="label_DebtInstrumentLenderDomain_2" xlink:title="label: DebtInstrumentLenderDomain to label_DebtInstrumentLenderDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_MidCapFinancialLLCMember" xlink:label="MidCapFinancialLLCMember" xlink:title="MidCapFinancialLLCMember" />
    <link:label xlink:type="resource" xlink:label="label_MidCapFinancialLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MidCapFinancialLLCMember" xml:lang="en-US" id="label_MidCapFinancialLLCMember">MidCap Financial LLC [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MidCapFinancialLLCMember" xlink:to="label_MidCapFinancialLLCMember" xlink:title="label: MidCapFinancialLLCMember to label_MidCapFinancialLLCMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_MidCapFinancialLLCMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_MidCapFinancialLLCMember" xml:lang="en-US" id="label_MidCapFinancialLLCMember_2">MidCap</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MidCapFinancialLLCMember" xlink:to="label_MidCapFinancialLLCMember_2" xlink:title="label: MidCapFinancialLLCMember to label_MidCapFinancialLLCMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_MidCapFinancialLLCMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_MidCapFinancialLLCMember" xml:lang="en-US" id="label_MidCapFinancialLLCMember_3">Represents information pertaining to MidCap Financial, LLC.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MidCapFinancialLLCMember" xlink:to="label_MidCapFinancialLLCMember_3" xlink:title="label: MidCapFinancialLLCMember to label_MidCapFinancialLLCMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StockIssuedByTypeOfProgramDomain" xlink:label="StockIssuedByTypeOfProgramDomain" xlink:title="StockIssuedByTypeOfProgramDomain" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedByTypeOfProgramDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedByTypeOfProgramDomain" xml:lang="en-US" id="label_StockIssuedByTypeOfProgramDomain">Stock Issued by Type of Program [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedByTypeOfProgramDomain" xlink:to="label_StockIssuedByTypeOfProgramDomain" xlink:title="label: StockIssuedByTypeOfProgramDomain to label_StockIssuedByTypeOfProgramDomain" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedByTypeOfProgramDomain_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedByTypeOfProgramDomain" xml:lang="en-US" id="label_StockIssuedByTypeOfProgramDomain_2">A group of different programs or plans under which stock of the entity is issued.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedByTypeOfProgramDomain" xlink:to="label_StockIssuedByTypeOfProgramDomain_2" xlink:title="label: StockIssuedByTypeOfProgramDomain to label_StockIssuedByTypeOfProgramDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ControlledEquityOfferingProgramMember" xlink:label="ControlledEquityOfferingProgramMember" xlink:title="ControlledEquityOfferingProgramMember" />
    <link:label xlink:type="resource" xlink:label="label_ControlledEquityOfferingProgramMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ControlledEquityOfferingProgramMember" xml:lang="en-US" id="label_ControlledEquityOfferingProgramMember">Controlled Equity Offering Program [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ControlledEquityOfferingProgramMember" xlink:to="label_ControlledEquityOfferingProgramMember" xlink:title="label: ControlledEquityOfferingProgramMember to label_ControlledEquityOfferingProgramMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ControlledEquityOfferingProgramMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ControlledEquityOfferingProgramMember" xml:lang="en-US" id="label_ControlledEquityOfferingProgramMember_2">Cantor Agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ControlledEquityOfferingProgramMember" xlink:to="label_ControlledEquityOfferingProgramMember_2" xlink:title="label: ControlledEquityOfferingProgramMember to label_ControlledEquityOfferingProgramMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ControlledEquityOfferingProgramMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ControlledEquityOfferingProgramMember" xml:lang="en-US" id="label_ControlledEquityOfferingProgramMember_3">Represents the Controlled Equity Offering Program of the entity through which shares of common stock may be publicly offered and sold through Cantor Fitzgerald and Co. ("Cantor") in privately negotiated and/or at-the-market transactions.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ControlledEquityOfferingProgramMember" xlink:to="label_ControlledEquityOfferingProgramMember_3" xlink:title="label: ControlledEquityOfferingProgramMember to label_ControlledEquityOfferingProgramMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ControlledEquityOfferingProgramAmendedMember" xlink:label="ControlledEquityOfferingProgramAmendedMember" xlink:title="ControlledEquityOfferingProgramAmendedMember" />
    <link:label xlink:type="resource" xlink:label="label_ControlledEquityOfferingProgramAmendedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ControlledEquityOfferingProgramAmendedMember" xml:lang="en-US" id="label_ControlledEquityOfferingProgramAmendedMember">Controlled Equity Offering Program Amended [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ControlledEquityOfferingProgramAmendedMember" xlink:to="label_ControlledEquityOfferingProgramAmendedMember" xlink:title="label: ControlledEquityOfferingProgramAmendedMember to label_ControlledEquityOfferingProgramAmendedMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ControlledEquityOfferingProgramAmendedMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ControlledEquityOfferingProgramAmendedMember" xml:lang="en-US" id="label_ControlledEquityOfferingProgramAmendedMember_2">Represents the Controlled Equity Offering Program of the entity, as amended, through which shares of common stock may be publicly offered and sold through Cantor Fitzgerald and Co. ("Cantor") in privately negotiated and/or at-the-market transactions.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ControlledEquityOfferingProgramAmendedMember" xlink:to="label_ControlledEquityOfferingProgramAmendedMember_2" xlink:title="label: ControlledEquityOfferingProgramAmendedMember to label_ControlledEquityOfferingProgramAmendedMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ControlledEquityOfferingProgramAmendedMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ControlledEquityOfferingProgramAmendedMember" xml:lang="en-US" id="label_ControlledEquityOfferingProgramAmendedMember_3">Cantor Amendment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ControlledEquityOfferingProgramAmendedMember" xlink:to="label_ControlledEquityOfferingProgramAmendedMember_3" xlink:title="label: ControlledEquityOfferingProgramAmendedMember to label_ControlledEquityOfferingProgramAmendedMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShareholderRightsPlanMember" xlink:label="ShareholderRightsPlanMember" xlink:title="ShareholderRightsPlanMember" />
    <link:label xlink:type="resource" xlink:label="label_ShareholderRightsPlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareholderRightsPlanMember" xml:lang="en-US" id="label_ShareholderRightsPlanMember">Shareholder Rights Plan [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareholderRightsPlanMember" xlink:to="label_ShareholderRightsPlanMember" xlink:title="label: ShareholderRightsPlanMember to label_ShareholderRightsPlanMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareholderRightsPlanMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ShareholderRightsPlanMember" xml:lang="en-US" id="label_ShareholderRightsPlanMember_2">Represents the Shareholder Rights Plan of the entity through which rights issued by the entity entitle recipients to obtain shares of preferred stock of the entity or common stock of an acquiring company.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareholderRightsPlanMember" xlink:to="label_ShareholderRightsPlanMember_2" xlink:title="label: ShareholderRightsPlanMember to label_ShareholderRightsPlanMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareholderRightsPlanMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareholderRightsPlanMember" xml:lang="en-US" id="label_ShareholderRightsPlanMember_3">Shareholder Rights Plan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareholderRightsPlanMember" xlink:to="label_ShareholderRightsPlanMember_3" xlink:title="label: ShareholderRightsPlanMember to label_ShareholderRightsPlanMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_GeneralElectricCapitalCorporationMember" xlink:label="GeneralElectricCapitalCorporationMember" xlink:title="GeneralElectricCapitalCorporationMember" />
    <link:label xlink:type="resource" xlink:label="label_GeneralElectricCapitalCorporationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GeneralElectricCapitalCorporationMember" xml:lang="en-US" id="label_GeneralElectricCapitalCorporationMember">General Electric Capital Corporation [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GeneralElectricCapitalCorporationMember" xlink:to="label_GeneralElectricCapitalCorporationMember" xlink:title="label: GeneralElectricCapitalCorporationMember to label_GeneralElectricCapitalCorporationMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_GeneralElectricCapitalCorporationMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_GeneralElectricCapitalCorporationMember" xml:lang="en-US" id="label_GeneralElectricCapitalCorporationMember_2">GECC</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GeneralElectricCapitalCorporationMember" xlink:to="label_GeneralElectricCapitalCorporationMember_2" xlink:title="label: GeneralElectricCapitalCorporationMember to label_GeneralElectricCapitalCorporationMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_GeneralElectricCapitalCorporationMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_GeneralElectricCapitalCorporationMember" xml:lang="en-US" id="label_GeneralElectricCapitalCorporationMember_3">Represents information pertaining to General Electric Capital Corporation.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GeneralElectricCapitalCorporationMember" xlink:to="label_GeneralElectricCapitalCorporationMember_3" xlink:title="label: GeneralElectricCapitalCorporationMember to label_GeneralElectricCapitalCorporationMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:label="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:title="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" />
    <link:label xlink:type="resource" xlink:label="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xml:lang="en-US" id="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems">Finite Lived and Indefinite Lived Intangible Assets by Major Class [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:to="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:title="label: FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems to label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xml:lang="en-US" id="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_2">Intangible Assets and Goodwill</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:to="label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_2" xlink:title="label: FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems to label_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="ArrangementsAndNonarrangementTransactionsMember" xlink:title="ArrangementsAndNonarrangementTransactionsMember" />
    <link:label xlink:type="resource" xlink:label="label_ArrangementsAndNonarrangementTransactionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ArrangementsAndNonarrangementTransactionsMember" xml:lang="en-US" id="label_ArrangementsAndNonarrangementTransactionsMember">Arrangements and Non-arrangement Transactions [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ArrangementsAndNonarrangementTransactionsMember" xlink:to="label_ArrangementsAndNonarrangementTransactionsMember" xlink:title="label: ArrangementsAndNonarrangementTransactionsMember to label_ArrangementsAndNonarrangementTransactionsMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:label="ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:title="ScheduleOfOtherLongTermLiabilitiesTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock">Tabular disclosure of other long-term liabilities, not separately disclosed on the balance sheet.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:to="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:title="label: ScheduleOfOtherLongTermLiabilitiesTableTextBlock to label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock_2">Schedule of Other Long Term Liabilities [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:to="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock_2" xlink:title="label: ScheduleOfOtherLongTermLiabilitiesTableTextBlock to label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock_3">Schedule of Other long-term liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfOtherLongTermLiabilitiesTableTextBlock" xlink:to="label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock_3" xlink:title="label: ScheduleOfOtherLongTermLiabilitiesTableTextBlock to label_ScheduleOfOtherLongTermLiabilitiesTableTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DeferredIncomeFromSaleOfTaxBenefits" xlink:label="DeferredIncomeFromSaleOfTaxBenefits" xlink:title="DeferredIncomeFromSaleOfTaxBenefits" />
    <link:label xlink:type="resource" xlink:label="label_DeferredIncomeFromSaleOfTaxBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredIncomeFromSaleOfTaxBenefits" xml:lang="en-US" id="label_DeferredIncomeFromSaleOfTaxBenefits">Deferred Income from Sale of Tax Benefits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeFromSaleOfTaxBenefits" xlink:to="label_DeferredIncomeFromSaleOfTaxBenefits" xlink:title="label: DeferredIncomeFromSaleOfTaxBenefits to label_DeferredIncomeFromSaleOfTaxBenefits" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredIncomeFromSaleOfTaxBenefits_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DeferredIncomeFromSaleOfTaxBenefits" xml:lang="en-US" id="label_DeferredIncomeFromSaleOfTaxBenefits_2">Deferred Income from Sale of Tax Benefits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeFromSaleOfTaxBenefits" xlink:to="label_DeferredIncomeFromSaleOfTaxBenefits_2" xlink:title="label: DeferredIncomeFromSaleOfTaxBenefits to label_DeferredIncomeFromSaleOfTaxBenefits" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredIncomeFromSaleOfTaxBenefits_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DeferredIncomeFromSaleOfTaxBenefits" xml:lang="en-US" id="label_DeferredIncomeFromSaleOfTaxBenefits_3">Represents the deferred income from the sale of tax benefit.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeFromSaleOfTaxBenefits" xlink:to="label_DeferredIncomeFromSaleOfTaxBenefits_3" xlink:title="label: DeferredIncomeFromSaleOfTaxBenefits to label_DeferredIncomeFromSaleOfTaxBenefits" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ValueOfTaxBenefitsAgreedToBeSold" xlink:label="ValueOfTaxBenefitsAgreedToBeSold" xlink:title="ValueOfTaxBenefitsAgreedToBeSold" />
    <link:label xlink:type="resource" xlink:label="label_ValueOfTaxBenefitsAgreedToBeSold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ValueOfTaxBenefitsAgreedToBeSold" xml:lang="en-US" id="label_ValueOfTaxBenefitsAgreedToBeSold">Amount at which New Jersey tax benefit agreed to be sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ValueOfTaxBenefitsAgreedToBeSold" xlink:to="label_ValueOfTaxBenefitsAgreedToBeSold" xlink:title="label: ValueOfTaxBenefitsAgreedToBeSold to label_ValueOfTaxBenefitsAgreedToBeSold" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ValueOfTaxBenefitsAgreedToBeSold_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ValueOfTaxBenefitsAgreedToBeSold" xml:lang="en-US" id="label_ValueOfTaxBenefitsAgreedToBeSold_2">Represents the value of tax benefits agreed to be sold by the entity during the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ValueOfTaxBenefitsAgreedToBeSold" xlink:to="label_ValueOfTaxBenefitsAgreedToBeSold_2" xlink:title="label: ValueOfTaxBenefitsAgreedToBeSold to label_ValueOfTaxBenefitsAgreedToBeSold" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ValueOfTaxBenefitsAgreedToBeSold_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ValueOfTaxBenefitsAgreedToBeSold" xml:lang="en-US" id="label_ValueOfTaxBenefitsAgreedToBeSold_3">Value of Tax Benefits Agreed to be Sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ValueOfTaxBenefitsAgreedToBeSold" xlink:to="label_ValueOfTaxBenefitsAgreedToBeSold_3" xlink:title="label: ValueOfTaxBenefitsAgreedToBeSold to label_ValueOfTaxBenefitsAgreedToBeSold" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:label="PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:title="PeriodForWhichBaseOfOperationsMustBeMaintained" />
    <link:label xlink:type="resource" xlink:label="label_PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PeriodForWhichBaseOfOperationsMustBeMaintained" xml:lang="en-US" id="label_PeriodForWhichBaseOfOperationsMustBeMaintained">Period for which base of operations must be maintained</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:to="label_PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:title="label: PeriodForWhichBaseOfOperationsMustBeMaintained to label_PeriodForWhichBaseOfOperationsMustBeMaintained" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PeriodForWhichBaseOfOperationsMustBeMaintained_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PeriodForWhichBaseOfOperationsMustBeMaintained" xml:lang="en-US" id="label_PeriodForWhichBaseOfOperationsMustBeMaintained_2">Represents period for which base of operations must be maintained in New Jersey.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:to="label_PeriodForWhichBaseOfOperationsMustBeMaintained_2" xlink:title="label: PeriodForWhichBaseOfOperationsMustBeMaintained to label_PeriodForWhichBaseOfOperationsMustBeMaintained" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PeriodForWhichBaseOfOperationsMustBeMaintained_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PeriodForWhichBaseOfOperationsMustBeMaintained" xml:lang="en-US" id="label_PeriodForWhichBaseOfOperationsMustBeMaintained_3">Period for which Base of Operations Must be Maintained</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodForWhichBaseOfOperationsMustBeMaintained" xlink:to="label_PeriodForWhichBaseOfOperationsMustBeMaintained_3" xlink:title="label: PeriodForWhichBaseOfOperationsMustBeMaintained to label_PeriodForWhichBaseOfOperationsMustBeMaintained" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentLenderAxis" xlink:label="DebtInstrumentLenderAxis" xlink:title="DebtInstrumentLenderAxis" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLenderAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentLenderAxis" xml:lang="en-US" id="label_DebtInstrumentLenderAxis">Debt Instrument, Lender [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLenderAxis" xlink:to="label_DebtInstrumentLenderAxis" xlink:title="label: DebtInstrumentLenderAxis to label_DebtInstrumentLenderAxis" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLenderAxis_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentLenderAxis" xml:lang="en-US" id="label_DebtInstrumentLenderAxis_2">The information pertaining to the debt instrument by lender.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLenderAxis" xlink:to="label_DebtInstrumentLenderAxis_2" xlink:title="label: DebtInstrumentLenderAxis to label_DebtInstrumentLenderAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StockIssuedByTypeOfProgramAxis" xlink:label="StockIssuedByTypeOfProgramAxis" xlink:title="StockIssuedByTypeOfProgramAxis" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedByTypeOfProgramAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedByTypeOfProgramAxis" xml:lang="en-US" id="label_StockIssuedByTypeOfProgramAxis">Stock Issued by Type of Program [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedByTypeOfProgramAxis" xlink:to="label_StockIssuedByTypeOfProgramAxis" xlink:title="label: StockIssuedByTypeOfProgramAxis to label_StockIssuedByTypeOfProgramAxis" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedByTypeOfProgramAxis_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedByTypeOfProgramAxis" xml:lang="en-US" id="label_StockIssuedByTypeOfProgramAxis_2">A categorization of various plans or programs under which stock of the entity is issued.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedByTypeOfProgramAxis" xlink:to="label_StockIssuedByTypeOfProgramAxis_2" xlink:title="label: StockIssuedByTypeOfProgramAxis to label_StockIssuedByTypeOfProgramAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentInterestOnlyPeriodOfExtension" xlink:label="DebtInstrumentInterestOnlyPeriodOfExtension" xlink:title="DebtInstrumentInterestOnlyPeriodOfExtension" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestOnlyPeriodOfExtension" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentInterestOnlyPeriodOfExtension" xml:lang="en-US" id="label_DebtInstrumentInterestOnlyPeriodOfExtension">Debt Instrument, Interest Only Period of Extension</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestOnlyPeriodOfExtension" xlink:to="label_DebtInstrumentInterestOnlyPeriodOfExtension" xlink:title="label: DebtInstrumentInterestOnlyPeriodOfExtension to label_DebtInstrumentInterestOnlyPeriodOfExtension" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestOnlyPeriodOfExtension_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentInterestOnlyPeriodOfExtension" xml:lang="en-US" id="label_DebtInstrumentInterestOnlyPeriodOfExtension_2">Extension of interest-only period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestOnlyPeriodOfExtension" xlink:to="label_DebtInstrumentInterestOnlyPeriodOfExtension_2" xlink:title="label: DebtInstrumentInterestOnlyPeriodOfExtension to label_DebtInstrumentInterestOnlyPeriodOfExtension" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestOnlyPeriodOfExtension_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentInterestOnlyPeriodOfExtension" xml:lang="en-US" id="label_DebtInstrumentInterestOnlyPeriodOfExtension_3">The period of extension of interest-only period which was extended through exercise of an option for extension by the entity during the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestOnlyPeriodOfExtension" xlink:to="label_DebtInstrumentInterestOnlyPeriodOfExtension_3" xlink:title="label: DebtInstrumentInterestOnlyPeriodOfExtension to label_DebtInstrumentInterestOnlyPeriodOfExtension" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:label="DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:title="DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xml:lang="en-US" id="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt">Upfront fee due upon repayment of the Term Loan in full</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:to="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:title="label: DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt to label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xml:lang="en-US" id="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt_2">Represents the upfront fee due upon amendment to extend the maturity period of the Term loan.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:to="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt_2" xlink:title="label: DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt to label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xml:lang="en-US" id="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt_3">Debt Instrument, up Front Fee Due upon Repayment for Extension of Maturity Period of Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:to="label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt_3" xlink:title="label: DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt to label_DebtInstrumentUpFrontFeeDueUponRepaymentForExtensionOfMaturityPeriodOfDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:label="DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:title="DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xml:lang="en-US" id="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt">Debt Instrument, Additional Fee Due on Repayment for Extension of Maturity Period of Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:to="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:title="label: DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt to label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xml:lang="en-US" id="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt_2">Additional Final Payment Fee due upon repayment of the Term Loan in full</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:to="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt_2" xlink:title="label: DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt to label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xml:lang="en-US" id="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt_3">Represents the additional fee due upon repayment of the Term Loan for the extension of the maturity period of debt.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" xlink:to="label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt_3" xlink:title="label: DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt to label_DebtInstrumentAdditionalFeeDueOnRepaymentForExtensionOfMaturityPeriodOfDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentPaymentFeePayableOnRepayment" xlink:label="DebtInstrumentPaymentFeePayableOnRepayment" xlink:title="DebtInstrumentPaymentFeePayableOnRepayment" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentPaymentFeePayableOnRepayment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentPaymentFeePayableOnRepayment" xml:lang="en-US" id="label_DebtInstrumentPaymentFeePayableOnRepayment">Debt Instrument, Payment Fee Payable on Repayment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentPaymentFeePayableOnRepayment" xlink:to="label_DebtInstrumentPaymentFeePayableOnRepayment" xlink:title="label: DebtInstrumentPaymentFeePayableOnRepayment to label_DebtInstrumentPaymentFeePayableOnRepayment" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentPaymentFeePayableOnRepayment_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentPaymentFeePayableOnRepayment" xml:lang="en-US" id="label_DebtInstrumentPaymentFeePayableOnRepayment_2">Original Payment Fee payable upon repayment of term loan in full</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentPaymentFeePayableOnRepayment" xlink:to="label_DebtInstrumentPaymentFeePayableOnRepayment_2" xlink:title="label: DebtInstrumentPaymentFeePayableOnRepayment to label_DebtInstrumentPaymentFeePayableOnRepayment" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentPaymentFeePayableOnRepayment_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentPaymentFeePayableOnRepayment" xml:lang="en-US" id="label_DebtInstrumentPaymentFeePayableOnRepayment_3">Represents the original payment fee to be paid upon repayment of the Term Loan in full.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentPaymentFeePayableOnRepayment" xlink:to="label_DebtInstrumentPaymentFeePayableOnRepayment_3" xlink:title="label: DebtInstrumentPaymentFeePayableOnRepayment to label_DebtInstrumentPaymentFeePayableOnRepayment" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:label="DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:title="DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xml:lang="en-US" id="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments">Debt Instrument, Number of Equal Consecutive Monthly Installments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:to="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:title="label: DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments to label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xml:lang="en-US" id="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments_2">Number of equal consecutive monthly installments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:to="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments_2" xlink:title="label: DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments to label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xml:lang="en-US" id="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments_3">Represents the number of equal consecutive monthly installments over which the loan is to be paid.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" xlink:to="label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments_3" xlink:title="label: DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments to label_DebtInstrumentNumberOfEqualConsecutiveMonthlyInstallments" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:label="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:title="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xml:lang="en-US" id="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree">Debt Instrument, Covenant Rate of Prepayment Premium in Year Three</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:to="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:title="label: DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree to label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xml:lang="en-US" id="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree_2">Rate of prepayment premium in year three (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:to="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree_2" xlink:title="label: DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree to label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xml:lang="en-US" id="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree_3">Represents the percentage of prepayment premium of the Term Loan to be paid in year three.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" xlink:to="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree_3" xlink:title="label: DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree to label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearThree" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_NoticePeriodForTerminationOfAgreement" xlink:label="NoticePeriodForTerminationOfAgreement" xlink:title="NoticePeriodForTerminationOfAgreement" />
    <link:label xlink:type="resource" xlink:label="label_NoticePeriodForTerminationOfAgreement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NoticePeriodForTerminationOfAgreement" xml:lang="en-US" id="label_NoticePeriodForTerminationOfAgreement">Notice Period for Termination of Agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoticePeriodForTerminationOfAgreement" xlink:to="label_NoticePeriodForTerminationOfAgreement" xlink:title="label: NoticePeriodForTerminationOfAgreement to label_NoticePeriodForTerminationOfAgreement" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_NoticePeriodForTerminationOfAgreement_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NoticePeriodForTerminationOfAgreement" xml:lang="en-US" id="label_NoticePeriodForTerminationOfAgreement_2">Notice period for termination of agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoticePeriodForTerminationOfAgreement" xlink:to="label_NoticePeriodForTerminationOfAgreement_2" xlink:title="label: NoticePeriodForTerminationOfAgreement to label_NoticePeriodForTerminationOfAgreement" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_NoticePeriodForTerminationOfAgreement_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NoticePeriodForTerminationOfAgreement" xml:lang="en-US" id="label_NoticePeriodForTerminationOfAgreement_3">Represents notice period for termination of agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoticePeriodForTerminationOfAgreement" xlink:to="label_NoticePeriodForTerminationOfAgreement_3" xlink:title="label: NoticePeriodForTerminationOfAgreement to label_NoticePeriodForTerminationOfAgreement" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:label="CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:title="CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xml:lang="en-US" id="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter">Common Stock Exercise of Full over Allotment Option to Purchase Additional Shares by Underwriter</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:to="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:title="label: CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter to label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xml:lang="en-US" id="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter_2">Shares issued on exercise of over-allotment option by underwriters (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:to="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter_2" xlink:title="label: CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter to label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xml:lang="en-US" id="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter_3">Represents the purchase of additional common stock.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" xlink:to="label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter_3" xlink:title="label: CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter to label_CommonStockExerciseOfFullOverAllotmentOptionToPurchaseAdditionalSharesByUnderwriter" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract">Share Based Compensation Arrangement by Share Based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_2">Weighted Average Remaining Contractual Term</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StockholdersEquityTable" xlink:label="StockholdersEquityTable" xlink:title="StockholdersEquityTable" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityTable" xml:lang="en-US" id="label_StockholdersEquityTable">Stockholders Equity [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityTable" xlink:to="label_StockholdersEquityTable" xlink:title="label: StockholdersEquityTable to label_StockholdersEquityTable" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityTable_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockholdersEquityTable" xml:lang="en-US" id="label_StockholdersEquityTable_2">Disclosure of information pertaining to changes in stockholders' equity during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityTable" xlink:to="label_StockholdersEquityTable_2" xlink:title="label: StockholdersEquityTable to label_StockholdersEquityTable" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StockholdersEquityLineItems" xlink:label="StockholdersEquityLineItems" xlink:title="StockholdersEquityLineItems" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityLineItems" xml:lang="en-US" id="label_StockholdersEquityLineItems">Stockholders Equity [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityLineItems" xlink:to="label_StockholdersEquityLineItems" xlink:title="label: StockholdersEquityLineItems to label_StockholdersEquityLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityLineItems_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityLineItems" xml:lang="en-US" id="label_StockholdersEquityLineItems_2">Stockholders' Equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityLineItems" xlink:to="label_StockholdersEquityLineItems_2" xlink:title="label: StockholdersEquityLineItems to label_StockholdersEquityLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityLineItems_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockholdersEquityLineItems" xml:lang="en-US" id="label_StockholdersEquityLineItems_3">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityLineItems" xlink:to="label_StockholdersEquityLineItems_3" xlink:title="label: StockholdersEquityLineItems to label_StockholdersEquityLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_USGovernmentAndMunicipalObligationsMember" xlink:label="USGovernmentAndMunicipalObligationsMember" xlink:title="USGovernmentAndMunicipalObligationsMember" />
    <link:label xlink:type="resource" xlink:label="label_USGovernmentAndMunicipalObligationsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_USGovernmentAndMunicipalObligationsMember" xml:lang="en-US" id="label_USGovernmentAndMunicipalObligationsMember">Represents securities issued by US government agencies and municipal governments.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="USGovernmentAndMunicipalObligationsMember" xlink:to="label_USGovernmentAndMunicipalObligationsMember" xlink:title="label: USGovernmentAndMunicipalObligationsMember to label_USGovernmentAndMunicipalObligationsMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_USGovernmentAndMunicipalObligationsMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_USGovernmentAndMunicipalObligationsMember" xml:lang="en-US" id="label_USGovernmentAndMunicipalObligationsMember_2">U.S. government and municipal obligations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="USGovernmentAndMunicipalObligationsMember" xlink:to="label_USGovernmentAndMunicipalObligationsMember_2" xlink:title="label: USGovernmentAndMunicipalObligationsMember to label_USGovernmentAndMunicipalObligationsMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_USGovernmentAndMunicipalObligationsMember_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_USGovernmentAndMunicipalObligationsMember" xml:lang="en-US" id="label_USGovernmentAndMunicipalObligationsMember_3">US Government and Municipal Obligations [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="USGovernmentAndMunicipalObligationsMember" xlink:to="label_USGovernmentAndMunicipalObligationsMember_3" xlink:title="label: USGovernmentAndMunicipalObligationsMember to label_USGovernmentAndMunicipalObligationsMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost">Available For Sale Securities, Debt Maturities after One Through Three Years, Amortized Cost</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:to="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost to label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost_2">Maturing after one year through three years</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:to="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost_2" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost to label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost_3">Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the second fiscal year through the third fiscal year following the latest fiscal year.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" xlink:to="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost_3" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost to label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsAmortizedCost" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain">Available For Sale Securities, Debt Maturities within One Year Gross Unrealized Gain</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:to="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain to label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain_2">Maturing in one year or less</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:to="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain_2" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain to label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain_3">Represents the gross unrealized gains on securities, at a point in time, for those securities which are expected to mature within one year of the balance sheet date, and which are categorized neither as held-to-maturity nor as trading securities.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" xlink:to="label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain_3" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain to label_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearGrossUnrealizedGain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedGain" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedGain" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedGain" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesGrossUnrealizedLossesAbstract" xlink:label="AvailableForSaleSecuritiesGrossUnrealizedLossesAbstract" xlink:title="AvailableForSaleSecuritiesGrossUnrealizedLossesAbstract" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses">Maturing after one year through three years</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses_2">Represents the gross unrealized losses on securities, at a point in time, which are expected to mature after one year and through three years from the balance sheet date, and which are categorized neither as held-to-maturity nor as trading securities.</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsGrossUnrealizedLosses_3">Available For Sale Securities, Debt Maturities after One Through Three Years, Gross Unrealized Losses</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue">Available For Sale Securities, Debt Maturities after One Through Three Years, Fair Value</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" xml:lang="en-US" id="label_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_3">Amount of available-for-sale debt securities at fair value maturing in the second fiscal year through the third fiscal year following the latest fiscal year.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_FixedRateOfCommissionOnSaleOfStock" xlink:label="FixedRateOfCommissionOnSaleOfStock" xlink:title="FixedRateOfCommissionOnSaleOfStock" />
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    <link:label xlink:type="resource" xlink:label="label_FixedRateOfCommissionOnSaleOfStock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FixedRateOfCommissionOnSaleOfStock" xml:lang="en-US" id="label_FixedRateOfCommissionOnSaleOfStock_2">Fixed commission rate (as a percent)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FixedRateOfCommissionOnSaleOfStock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_FixedRateOfCommissionOnSaleOfStock" xml:lang="en-US" id="label_FixedRateOfCommissionOnSaleOfStock_3">Represents the fixed commission rate expressed as a percentage of the gross sales price per share of common stock sold by the entity.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CommonStockIssuanceOfAdditionalSharesAggregateOfferingPrice" xlink:label="CommonStockIssuanceOfAdditionalSharesAggregateOfferingPrice" xlink:title="CommonStockIssuanceOfAdditionalSharesAggregateOfferingPrice" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ScheduleOfNatureOfBusinessAndOverviewTable" xlink:label="ScheduleOfNatureOfBusinessAndOverviewTable" xlink:title="ScheduleOfNatureOfBusinessAndOverviewTable" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_EmployeeConsultantAndNonEmployeeDirectorStockOptionMember" xlink:label="EmployeeConsultantAndNonEmployeeDirectorStockOptionMember" xlink:title="EmployeeConsultantAndNonEmployeeDirectorStockOptionMember" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ShelfRegistrationStatementAmount" xlink:label="ShelfRegistrationStatementAmount" xlink:title="ShelfRegistrationStatementAmount" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xlink:label="ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xlink:title="ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xml:lang="en-US" id="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare">Class of Warrant or Right, Number of Rights Per Common Stock Share</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xml:lang="en-US" id="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare_2">Number of preferred stock purchase rights for each outstanding share of common stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xlink:to="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare_2" xlink:title="label: ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare to label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare" xml:lang="en-US" id="label_ClassOfWarrantOrRightNumberOfRightsPerCommonStockShare_3">Represents the number of rights that were distributed for each outstanding share of common stock.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xlink:label="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xlink:title="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired">Class of Warrant or Right Condition on Exercise of Rights Percentage of Common Stock Acquired</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired_2">Percentage of common stock to be acquired for rights to be exercisable</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xlink:to="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired_2" xlink:title="label: ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired to label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquired_3">Represents the percentage of the entity's outstanding common stock that must be acquired for rights to become exercisable.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xlink:label="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xlink:title="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender">Class of Warrant or Right Condition on Exercise of Rights Percentage of Common Stock Acquired through Tender</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender_2">Percentage of common stock to be acquired in a tender offer for rights to be exercisable</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xlink:to="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender_2" xlink:title="label: ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender to label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfCommonStockAcquiredThroughTender_3">Represents the percentage of the entity's outstanding common stock that must be acquired in a tender offer for rights to become exercisable.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired" xlink:label="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired" xlink:title="NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired" xml:lang="en-US" id="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired">Represents the number of multiples of the exercise price that the right holder has the right to receive in value, if 15 percent or more of the outstanding common stock is acquired.</link:label>
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    <link:label xlink:type="resource" xlink:label="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired" xml:lang="en-US" id="label_NumberOfMultiplesClassOfWarrantOrRightConditionOnExerciseOfRightsOfExercisePriceHolderCanReceiveInValueIfFifteenPercentOrMoreOfCommonStockIsAcquired_3">Number of multiples of the exercise price that the Right holder has right to receive in value if 15% or more of the outstanding common stock is acquired</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xlink:label="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xlink:title="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany">Class of Warrant or Right Condition on Exercise of Rights Percentage of Assets or Earning Power Sold for Holder Right to Receive Common Stock of Acquiring Company</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany_2">Percentage of assets or earning power sold allowing the Right holder a right to receive common stock of the acquiring company</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xlink:to="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany_2" xlink:title="label: ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany to label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany" xml:lang="en-US" id="label_ClassOfWarrantOrRightConditionOnExerciseOfRightsPercentageOfAssetsOrEarningPowerSoldForHolderRightToReceiveCommonStockOfAcquiringCompany_3">Represents the percentage of assets or earning power sold which would allow the right holder the right to receive the common stock of the acquiring entity with a value that is twice the right's exercise price.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_LudwigInstituteForCancerResearchMember" xlink:label="LudwigInstituteForCancerResearchMember" xlink:title="LudwigInstituteForCancerResearchMember" />
    <link:label xlink:type="resource" xlink:label="label_LudwigInstituteForCancerResearchMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LudwigInstituteForCancerResearchMember" xml:lang="en-US" id="label_LudwigInstituteForCancerResearchMember">Ludwig Institute for Cancer Research [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LudwigInstituteForCancerResearchMember" xlink:to="label_LudwigInstituteForCancerResearchMember" xlink:title="label: LudwigInstituteForCancerResearchMember to label_LudwigInstituteForCancerResearchMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LudwigInstituteForCancerResearchMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LudwigInstituteForCancerResearchMember" xml:lang="en-US" id="label_LudwigInstituteForCancerResearchMember_2">Ludwig</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LudwigInstituteForCancerResearchMember" xlink:to="label_LudwigInstituteForCancerResearchMember_2" xlink:title="label: LudwigInstituteForCancerResearchMember to label_LudwigInstituteForCancerResearchMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_LudwigInstituteForCancerResearchMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LudwigInstituteForCancerResearchMember" xml:lang="en-US" id="label_LudwigInstituteForCancerResearchMember_3">Represents information related to Ludwig Institute for Cancer Research.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LudwigInstituteForCancerResearchMember" xlink:to="label_LudwigInstituteForCancerResearchMember_3" xlink:title="label: LudwigInstituteForCancerResearchMember to label_LudwigInstituteForCancerResearchMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AlterisTherapeuticsIncMember" xlink:label="AlterisTherapeuticsIncMember" xlink:title="AlterisTherapeuticsIncMember" />
    <link:label xlink:type="resource" xlink:label="label_AlterisTherapeuticsIncMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AlterisTherapeuticsIncMember" xml:lang="en-US" id="label_AlterisTherapeuticsIncMember">Represents information related to Alteris Therapeutics, Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AlterisTherapeuticsIncMember" xlink:to="label_AlterisTherapeuticsIncMember" xlink:title="label: AlterisTherapeuticsIncMember to label_AlterisTherapeuticsIncMember" use="optional" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AlterisTherapeuticsIncMember" xlink:to="label_AlterisTherapeuticsIncMember_2" xlink:title="label: AlterisTherapeuticsIncMember to label_AlterisTherapeuticsIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AlterisTherapeuticsIncMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AlterisTherapeuticsIncMember" xml:lang="en-US" id="label_AlterisTherapeuticsIncMember_3">Alteris</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AlterisTherapeuticsIncMember" xlink:to="label_AlterisTherapeuticsIncMember_3" xlink:title="label: AlterisTherapeuticsIncMember to label_AlterisTherapeuticsIncMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ThomasJeffersonUniversityMember" xlink:label="ThomasJeffersonUniversityMember" xlink:title="ThomasJeffersonUniversityMember" />
    <link:label xlink:type="resource" xlink:label="label_ThomasJeffersonUniversityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ThomasJeffersonUniversityMember" xml:lang="en-US" id="label_ThomasJeffersonUniversityMember">TJU</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ThomasJeffersonUniversityMember" xlink:to="label_ThomasJeffersonUniversityMember" xlink:title="label: ThomasJeffersonUniversityMember to label_ThomasJeffersonUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ThomasJeffersonUniversityMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ThomasJeffersonUniversityMember" xml:lang="en-US" id="label_ThomasJeffersonUniversityMember_2">Represents information related to Thomas Jefferson University.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ThomasJeffersonUniversityMember" xlink:to="label_ThomasJeffersonUniversityMember_2" xlink:title="label: ThomasJeffersonUniversityMember to label_ThomasJeffersonUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ThomasJeffersonUniversityMember_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ThomasJeffersonUniversityMember" xml:lang="en-US" id="label_ThomasJeffersonUniversityMember_3">Thomas Jefferson University [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ThomasJeffersonUniversityMember" xlink:to="label_ThomasJeffersonUniversityMember_3" xlink:title="label: ThomasJeffersonUniversityMember to label_ThomasJeffersonUniversityMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_UniversityOfSouthamptonUKMember" xlink:label="UniversityOfSouthamptonUKMember" xlink:title="UniversityOfSouthamptonUKMember" />
    <link:label xlink:type="resource" xlink:label="label_UniversityOfSouthamptonUKMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_UniversityOfSouthamptonUKMember" xml:lang="en-US" id="label_UniversityOfSouthamptonUKMember">University of Southampton UK [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UniversityOfSouthamptonUKMember" xlink:to="label_UniversityOfSouthamptonUKMember" xlink:title="label: UniversityOfSouthamptonUKMember to label_UniversityOfSouthamptonUKMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_UniversityOfSouthamptonUKMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_UniversityOfSouthamptonUKMember" xml:lang="en-US" id="label_UniversityOfSouthamptonUKMember_2">Southampton</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UniversityOfSouthamptonUKMember" xlink:to="label_UniversityOfSouthamptonUKMember_2" xlink:title="label: UniversityOfSouthamptonUKMember to label_UniversityOfSouthamptonUKMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_UniversityOfSouthamptonUKMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_UniversityOfSouthamptonUKMember" xml:lang="en-US" id="label_UniversityOfSouthamptonUKMember_3">Represents information related to University of Southampton, UK.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UniversityOfSouthamptonUKMember" xlink:to="label_UniversityOfSouthamptonUKMember_3" xlink:title="label: UniversityOfSouthamptonUKMember to label_UniversityOfSouthamptonUKMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AmgenIncMember" xlink:label="AmgenIncMember" xlink:title="AmgenIncMember" />
    <link:label xlink:type="resource" xlink:label="label_AmgenIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmgenIncMember" xml:lang="en-US" id="label_AmgenIncMember">Amgen Inc [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmgenIncMember" xlink:to="label_AmgenIncMember" xlink:title="label: AmgenIncMember to label_AmgenIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmgenIncMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AmgenIncMember" xml:lang="en-US" id="label_AmgenIncMember_2">Amgen</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmgenIncMember" xlink:to="label_AmgenIncMember_2" xlink:title="label: AmgenIncMember to label_AmgenIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmgenIncMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AmgenIncMember" xml:lang="en-US" id="label_AmgenIncMember_3">Represents information related to Amgen Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmgenIncMember" xlink:to="label_AmgenIncMember_3" xlink:title="label: AmgenIncMember to label_AmgenIncMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_SeattleGeneticIncMember" xlink:label="SeattleGeneticIncMember" xlink:title="SeattleGeneticIncMember" />
    <link:label xlink:type="resource" xlink:label="label_SeattleGeneticIncMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_SeattleGeneticIncMember" xml:lang="en-US" id="label_SeattleGeneticIncMember">Represents information related to Seattle Genetics, Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeattleGeneticIncMember" xlink:to="label_SeattleGeneticIncMember" xlink:title="label: SeattleGeneticIncMember to label_SeattleGeneticIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_SeattleGeneticIncMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SeattleGeneticIncMember" xml:lang="en-US" id="label_SeattleGeneticIncMember_2">Seattle Genetic Inc [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeattleGeneticIncMember" xlink:to="label_SeattleGeneticIncMember_2" xlink:title="label: SeattleGeneticIncMember to label_SeattleGeneticIncMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_SeattleGeneticIncMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SeattleGeneticIncMember" xml:lang="en-US" id="label_SeattleGeneticIncMember_3">Seattle Genetics</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeattleGeneticIncMember" xlink:to="label_SeattleGeneticIncMember_3" xlink:title="label: SeattleGeneticIncMember to label_SeattleGeneticIncMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="EntityWellKnownSeasonedIssuer" xlink:title="EntityWellKnownSeasonedIssuer" />
    <link:label xlink:type="resource" xlink:label="label_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityWellKnownSeasonedIssuer" xml:lang="en-US" id="label_EntityWellKnownSeasonedIssuer">Entity Well-known Seasoned Issuer</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityWellKnownSeasonedIssuer" xlink:to="label_EntityWellKnownSeasonedIssuer" xlink:title="label: EntityWellKnownSeasonedIssuer to label_EntityWellKnownSeasonedIssuer" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_NonRefundableLicenseFee" xlink:label="NonRefundableLicenseFee" xlink:title="NonRefundableLicenseFee" />
    <link:label xlink:type="resource" xlink:label="label_NonRefundableLicenseFee" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NonRefundableLicenseFee" xml:lang="en-US" id="label_NonRefundableLicenseFee">Non Refundable License Fee</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NonRefundableLicenseFee" xlink:to="label_NonRefundableLicenseFee" xlink:title="label: NonRefundableLicenseFee to label_NonRefundableLicenseFee" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_NonRefundableLicenseFee_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NonRefundableLicenseFee" xml:lang="en-US" id="label_NonRefundableLicenseFee_2">Nonrefundable license fee expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NonRefundableLicenseFee" xlink:to="label_NonRefundableLicenseFee_2" xlink:title="label: NonRefundableLicenseFee to label_NonRefundableLicenseFee" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_NonRefundableLicenseFee_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NonRefundableLicenseFee" xml:lang="en-US" id="label_NonRefundableLicenseFee_3">Represents the amount of nonrefundable license fee expense.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NonRefundableLicenseFee" xlink:to="label_NonRefundableLicenseFee_3" xlink:title="label: NonRefundableLicenseFee to label_NonRefundableLicenseFee" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="EntityVoluntaryFilers" xlink:title="EntityVoluntaryFilers" />
    <link:label xlink:type="resource" xlink:label="label_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityVoluntaryFilers" xml:lang="en-US" id="label_EntityVoluntaryFilers">Entity Voluntary Filers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityVoluntaryFilers" xlink:to="label_EntityVoluntaryFilers" xlink:title="label: EntityVoluntaryFilers to label_EntityVoluntaryFilers" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:label="CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:title="CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xml:lang="en-US" id="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct">Collaborative Arrangement Royalty Payment Period from First Commercial Sale of Licensed Product</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:to="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:title="label: CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct to label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xml:lang="en-US" id="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct_2">Period from the first commercial sale of licensed product for royalty payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:to="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct_2" xlink:title="label: CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct to label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xml:lang="en-US" id="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct_3">Represents the period from the first commercial sale of licensed product for royalty payment under the collaborative arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" xlink:to="label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct_3" xlink:title="label: CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct to label_CollaborativeArrangementRoyaltyPaymentPeriodFromFirstCommercialSaleOfLicensedProduct" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="EntityCurrentReportingStatus" xlink:title="EntityCurrentReportingStatus" />
    <link:label xlink:type="resource" xlink:label="label_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityCurrentReportingStatus" xml:lang="en-US" id="label_EntityCurrentReportingStatus">Entity Current Reporting Status</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCurrentReportingStatus" xlink:to="label_EntityCurrentReportingStatus" xlink:title="label: EntityCurrentReportingStatus to label_EntityCurrentReportingStatus" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementTotalPotentialMilestonePayments" xlink:label="CollaborativeArrangementTotalPotentialMilestonePayments" xlink:title="CollaborativeArrangementTotalPotentialMilestonePayments" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementTotalPotentialMilestonePayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementTotalPotentialMilestonePayments" xml:lang="en-US" id="label_CollaborativeArrangementTotalPotentialMilestonePayments">Collaborative Arrangement, Total Potential Milestone Payments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementTotalPotentialMilestonePayments" xlink:to="label_CollaborativeArrangementTotalPotentialMilestonePayments" xlink:title="label: CollaborativeArrangementTotalPotentialMilestonePayments to label_CollaborativeArrangementTotalPotentialMilestonePayments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementTotalPotentialMilestonePayments_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementTotalPotentialMilestonePayments" xml:lang="en-US" id="label_CollaborativeArrangementTotalPotentialMilestonePayments_2">Milestone payment due</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementTotalPotentialMilestonePayments" xlink:to="label_CollaborativeArrangementTotalPotentialMilestonePayments_2" xlink:title="label: CollaborativeArrangementTotalPotentialMilestonePayments to label_CollaborativeArrangementTotalPotentialMilestonePayments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementTotalPotentialMilestonePayments_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementTotalPotentialMilestonePayments" xml:lang="en-US" id="label_CollaborativeArrangementTotalPotentialMilestonePayments_3">Represents the total amount of potential milestone payments to be made by the entity based on terms of the collaborative arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementTotalPotentialMilestonePayments" xlink:to="label_CollaborativeArrangementTotalPotentialMilestonePayments_3" xlink:title="label: CollaborativeArrangementTotalPotentialMilestonePayments to label_CollaborativeArrangementTotalPotentialMilestonePayments" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityFilerCategory" xlink:label="EntityFilerCategory" xlink:title="EntityFilerCategory" />
    <link:label xlink:type="resource" xlink:label="label_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityFilerCategory" xml:lang="en-US" id="label_EntityFilerCategory">Entity Filer Category</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityFilerCategory" xlink:to="label_EntityFilerCategory" xlink:title="label: EntityFilerCategory to label_EntityFilerCategory" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementAgreementTerm" xlink:label="CollaborativeArrangementAgreementTerm" xlink:title="CollaborativeArrangementAgreementTerm" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementAgreementTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementAgreementTerm" xml:lang="en-US" id="label_CollaborativeArrangementAgreementTerm">Term of the agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAgreementTerm" xlink:to="label_CollaborativeArrangementAgreementTerm" xlink:title="label: CollaborativeArrangementAgreementTerm to label_CollaborativeArrangementAgreementTerm" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementAgreementTerm_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementAgreementTerm" xml:lang="en-US" id="label_CollaborativeArrangementAgreementTerm_2">Represents the term of the collaborative arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAgreementTerm" xlink:to="label_CollaborativeArrangementAgreementTerm_2" xlink:title="label: CollaborativeArrangementAgreementTerm to label_CollaborativeArrangementAgreementTerm" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementAgreementTerm_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementAgreementTerm" xml:lang="en-US" id="label_CollaborativeArrangementAgreementTerm_3">Collaborative Arrangement Agreement Term</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAgreementTerm" xlink:to="label_CollaborativeArrangementAgreementTerm_3" xlink:title="label: CollaborativeArrangementAgreementTerm to label_CollaborativeArrangementAgreementTerm" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityPublicFloat" xlink:label="EntityPublicFloat" xlink:title="EntityPublicFloat" />
    <link:label xlink:type="resource" xlink:label="label_EntityPublicFloat" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityPublicFloat" xml:lang="en-US" id="label_EntityPublicFloat">Entity Public Float</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityPublicFloat" xlink:to="label_EntityPublicFloat" xlink:title="label: EntityPublicFloat to label_EntityPublicFloat" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementNumberOfAgreements" xlink:label="CollaborativeArrangementNumberOfAgreements" xlink:title="CollaborativeArrangementNumberOfAgreements" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementNumberOfAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementNumberOfAgreements" xml:lang="en-US" id="label_CollaborativeArrangementNumberOfAgreements">Collaborative Arrangement, Number of Agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementNumberOfAgreements" xlink:to="label_CollaborativeArrangementNumberOfAgreements" xlink:title="label: CollaborativeArrangementNumberOfAgreements to label_CollaborativeArrangementNumberOfAgreements" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementNumberOfAgreements_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementNumberOfAgreements" xml:lang="en-US" id="label_CollaborativeArrangementNumberOfAgreements_2">Number of exclusive license agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementNumberOfAgreements" xlink:to="label_CollaborativeArrangementNumberOfAgreements_2" xlink:title="label: CollaborativeArrangementNumberOfAgreements to label_CollaborativeArrangementNumberOfAgreements" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementNumberOfAgreements_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementNumberOfAgreements" xml:lang="en-US" id="label_CollaborativeArrangementNumberOfAgreements_3">Represents the number of exclusive license agreements under the collaborative arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementNumberOfAgreements" xlink:to="label_CollaborativeArrangementNumberOfAgreements_3" xlink:title="label: CollaborativeArrangementNumberOfAgreements to label_CollaborativeArrangementNumberOfAgreements" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityRegistrantName" xlink:label="EntityRegistrantName" xlink:title="EntityRegistrantName" />
    <link:label xlink:type="resource" xlink:label="label_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityRegistrantName" xml:lang="en-US" id="label_EntityRegistrantName">Entity Registrant Name</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityRegistrantName" xlink:to="label_EntityRegistrantName" xlink:title="label: EntityRegistrantName to label_EntityRegistrantName" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_IncomeTaxReconciliationExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:label="IncomeTaxReconciliationExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:title="IncomeTaxReconciliationExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" />
    <link:label xlink:type="resource" xlink:label="label_IncomeTaxReconciliationExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncomeTaxReconciliationExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xml:lang="en-US" id="label_IncomeTaxReconciliationExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits">Income Tax Reconciliation Expiration of Net Operating Losses and Research and Development Tax Credits</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesOtherAcquiredIntangibleAssets_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxLiabilitiesOtherAcquiredIntangibleAssets" xml:lang="en-US" id="label_DeferredTaxLiabilitiesOtherAcquiredIntangibleAssets_2">Deferred Tax Liabilities, Other Acquired Intangible Assets</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesOtherAcquiredIntangibleAssets_3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_DeferredTaxLiabilitiesOtherAcquiredIntangibleAssets" xml:lang="en-US" id="label_DeferredTaxLiabilitiesOtherAcquiredIntangibleAssets_3">Other Acquired Intangibles</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xlink:label="DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xlink:title="DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xml:lang="en-US" id="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense">Deferred Tax Liabilities, Deferred License Costs and Other Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xlink:to="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xlink:title="label: DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense to label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xml:lang="en-US" id="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense_2">Deferred License Costs and Other</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xml:lang="en-US" id="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense_3">Amount of deferred tax liability attributable to taxable temporary differences from license costs and other items that are not separately disclosed.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" xlink:to="label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense_3" xlink:title="label: DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense to label_DeferredTaxLiabilitiesDeferredLicenseCostsAndOtherExpense" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DeferredTaxAssetsLiabilitiesGross" xlink:label="DeferredTaxAssetsLiabilitiesGross" xlink:title="DeferredTaxAssetsLiabilitiesGross" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsLiabilitiesGross" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DeferredTaxAssetsLiabilitiesGross" xml:lang="en-US" id="label_DeferredTaxAssetsLiabilitiesGross">Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxAssetsLiabilitiesGross" xlink:to="label_DeferredTaxAssetsLiabilitiesGross" xlink:title="label: DeferredTaxAssetsLiabilitiesGross to label_DeferredTaxAssetsLiabilitiesGross" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsLiabilitiesGross_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxAssetsLiabilitiesGross" xml:lang="en-US" id="label_DeferredTaxAssetsLiabilitiesGross_2">Deferred Tax Assets (Liabilities) Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxAssetsLiabilitiesGross" xlink:to="label_DeferredTaxAssetsLiabilitiesGross_2" xlink:title="label: DeferredTaxAssetsLiabilitiesGross to label_DeferredTaxAssetsLiabilitiesGross" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsLiabilitiesGross_3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_DeferredTaxAssetsLiabilitiesGross" xml:lang="en-US" id="label_DeferredTaxAssetsLiabilitiesGross_3">Total Deferred Tax Assets and Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxAssetsLiabilitiesGross" xlink:to="label_DeferredTaxAssetsLiabilitiesGross_3" xlink:title="label: DeferredTaxAssetsLiabilitiesGross to label_DeferredTaxAssetsLiabilitiesGross" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" xlink:label="DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" xlink:title="DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" xml:lang="en-US" id="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets">Amount of deferred tax liability attributable to taxable temporary differences from in-process research and development intangible assets.</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" xml:lang="en-US" id="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets_2">Deferred Tax Assets in Process Research and Development Intangible Assets</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets_3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets" xml:lang="en-US" id="label_DeferredTaxAssetsInProcessResearchAndDevelopmentIntangibleAssets_3">IPR&amp;D Intangibles</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="EntityCommonStockSharesOutstanding" xlink:title="EntityCommonStockSharesOutstanding" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementMilestonePaymentsReceived" xlink:label="CollaborativeArrangementMilestonePaymentsReceived" xlink:title="CollaborativeArrangementMilestonePaymentsReceived" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementMilestonePaymentsReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementMilestonePaymentsReceived" xml:lang="en-US" id="label_CollaborativeArrangementMilestonePaymentsReceived">Collaborative Arrangement Milestone Payments Received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementMilestonePaymentsReceived" xlink:to="label_CollaborativeArrangementMilestonePaymentsReceived" xlink:title="label: CollaborativeArrangementMilestonePaymentsReceived to label_CollaborativeArrangementMilestonePaymentsReceived" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementMilestonePaymentsReceived_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementMilestonePaymentsReceived" xml:lang="en-US" id="label_CollaborativeArrangementMilestonePaymentsReceived_2">Other income related to milestone payment received</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementMilestonePaymentsReceived_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementMilestonePaymentsReceived" xml:lang="en-US" id="label_CollaborativeArrangementMilestonePaymentsReceived_3">Represents the payment received towards potential commercial milestone payments related to future net sales of Belinostat.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AVANTMember" xlink:label="AVANTMember" xlink:title="AVANTMember" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossAndTaxCreditCarryforwardsLineItems" xlink:label="OperatingLossAndTaxCreditCarryforwardsLineItems" xlink:title="OperatingLossAndTaxCreditCarryforwardsLineItems" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossCarryforwardsAnnualLimitationAmount" xlink:label="OperatingLossCarryforwardsAnnualLimitationAmount" xlink:title="OperatingLossCarryforwardsAnnualLimitationAmount" />
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    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossCarryforwardsExpired" xlink:label="OperatingLossCarryforwardsExpired" xlink:title="OperatingLossCarryforwardsExpired" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsExpired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLossCarryforwardsExpired" xml:lang="en-US" id="label_OperatingLossCarryforwardsExpired">Operating Loss Carryforwards Expired</link:label>
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    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsExpired_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLossCarryforwardsExpired" xml:lang="en-US" id="label_OperatingLossCarryforwardsExpired_2">Represents the operating loss carryforwards that were expired during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsExpired" xlink:to="label_OperatingLossCarryforwardsExpired_2" xlink:title="label: OperatingLossCarryforwardsExpired to label_OperatingLossCarryforwardsExpired" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsExpired_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLossCarryforwardsExpired" xml:lang="en-US" id="label_OperatingLossCarryforwardsExpired_3">NOLs expired</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsExpired" xlink:to="label_OperatingLossCarryforwardsExpired_3" xlink:title="label: OperatingLossCarryforwardsExpired to label_OperatingLossCarryforwardsExpired" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:label="OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:title="OperatingLossCarryforwardsNetOfExpirationsAndUtilization" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xml:lang="en-US" id="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization">Operating Loss Carryforwards Net of Expirations and Utilization</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:to="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:title="label: OperatingLossCarryforwardsNetOfExpirationsAndUtilization to label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xml:lang="en-US" id="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization_2">The sum of domestic, foreign and state and local operating loss carryforwards, net of expirations and utilization but before tax effects, available to reduce future taxable income under enacted tax laws.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:to="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization_2" xlink:title="label: OperatingLossCarryforwardsNetOfExpirationsAndUtilization to label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xml:lang="en-US" id="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization_3">NOL, net of expirations and utilization</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsNetOfExpirationsAndUtilization" xlink:to="label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization_3" xlink:title="label: OperatingLossCarryforwardsNetOfExpirationsAndUtilization to label_OperatingLossCarryforwardsNetOfExpirationsAndUtilization" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossCarryforwardsWithLimitationsOnUse" xlink:label="OperatingLossCarryforwardsWithLimitationsOnUse" xlink:title="OperatingLossCarryforwardsWithLimitationsOnUse" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsWithLimitationsOnUse" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLossCarryforwardsWithLimitationsOnUse" xml:lang="en-US" id="label_OperatingLossCarryforwardsWithLimitationsOnUse">Operating Loss Carryforwards with Limitations on Use</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsWithLimitationsOnUse" xlink:to="label_OperatingLossCarryforwardsWithLimitationsOnUse" xlink:title="label: OperatingLossCarryforwardsWithLimitationsOnUse to label_OperatingLossCarryforwardsWithLimitationsOnUse" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsWithLimitationsOnUse_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLossCarryforwardsWithLimitationsOnUse" xml:lang="en-US" id="label_OperatingLossCarryforwardsWithLimitationsOnUse_2">Represents the operating loss carryforwards with limitations on use.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsWithLimitationsOnUse" xlink:to="label_OperatingLossCarryforwardsWithLimitationsOnUse_2" xlink:title="label: OperatingLossCarryforwardsWithLimitationsOnUse to label_OperatingLossCarryforwardsWithLimitationsOnUse" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsWithLimitationsOnUse_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLossCarryforwardsWithLimitationsOnUse" xml:lang="en-US" id="label_OperatingLossCarryforwardsWithLimitationsOnUse_3">Loss carryforwards with limitations on use</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsWithLimitationsOnUse" xlink:to="label_OperatingLossCarryforwardsWithLimitationsOnUse_3" xlink:title="label: OperatingLossCarryforwardsWithLimitationsOnUse to label_OperatingLossCarryforwardsWithLimitationsOnUse" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:label="OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:title="OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xml:lang="en-US" id="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized">Operating Loss Carryforwards Remotely Likely to be Utilized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:to="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:title="label: OperatingLossCarryforwardsRemotelyLikelyToBeUtilized to label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xml:lang="en-US" id="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized_2">Represents the operating loss carryforwards that are remotely likely to be utilized in future periods.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:to="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized_2" xlink:title="label: OperatingLossCarryforwardsRemotelyLikelyToBeUtilized to label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xml:lang="en-US" id="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized_3">Loss carryforwards remotely likely to be utilized in future periods</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" xlink:to="label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized_3" xlink:title="label: OperatingLossCarryforwardsRemotelyLikelyToBeUtilized to label_OperatingLossCarryforwardsRemotelyLikelyToBeUtilized" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OwnershipChangeAxis" xlink:label="OwnershipChangeAxis" xlink:title="OwnershipChangeAxis" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OwnershipChangeAxis" xml:lang="en-US" id="label_OwnershipChangeAxis">Ownership Change [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeAxis" xlink:to="label_OwnershipChangeAxis" xlink:title="label: OwnershipChangeAxis to label_OwnershipChangeAxis" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeAxis_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OwnershipChangeAxis" xml:lang="en-US" id="label_OwnershipChangeAxis_2">Details pertaining to transactions that result in ownership change as defined by Section 382 of the Internal Revenue Code.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeAxis" xlink:to="label_OwnershipChangeAxis_2" xlink:title="label: OwnershipChangeAxis to label_OwnershipChangeAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OwnershipChangeDomain" xlink:label="OwnershipChangeDomain" xlink:title="OwnershipChangeDomain" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OwnershipChangeDomain" xml:lang="en-US" id="label_OwnershipChangeDomain">Ownership Change [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeDomain" xlink:to="label_OwnershipChangeDomain" xlink:title="label: OwnershipChangeDomain to label_OwnershipChangeDomain" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeDomain_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OwnershipChangeDomain" xml:lang="en-US" id="label_OwnershipChangeDomain_2">Transactions that result in ownership change as defined by Section 382 of the Internal Revenue Code.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeDomain" xlink:to="label_OwnershipChangeDomain_2" xlink:title="label: OwnershipChangeDomain to label_OwnershipChangeDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OwnershipChangeInOctober2007Member" xlink:label="OwnershipChangeInOctober2007Member" xlink:title="OwnershipChangeInOctober2007Member" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeInOctober2007Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OwnershipChangeInOctober2007Member" xml:lang="en-US" id="label_OwnershipChangeInOctober2007Member">Ownership Change in October2007 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeInOctober2007Member" xlink:to="label_OwnershipChangeInOctober2007Member" xlink:title="label: OwnershipChangeInOctober2007Member to label_OwnershipChangeInOctober2007Member" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeInOctober2007Member_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OwnershipChangeInOctober2007Member" xml:lang="en-US" id="label_OwnershipChangeInOctober2007Member_2">Details pertaining to ownership change in October 2007.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeInOctober2007Member" xlink:to="label_OwnershipChangeInOctober2007Member_2" xlink:title="label: OwnershipChangeInOctober2007Member to label_OwnershipChangeInOctober2007Member" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangeInOctober2007Member_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OwnershipChangeInOctober2007Member" xml:lang="en-US" id="label_OwnershipChangeInOctober2007Member_3">Ownership change in October 2007</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangeInOctober2007Member" xlink:to="label_OwnershipChangeInOctober2007Member_3" xlink:title="label: OwnershipChangeInOctober2007Member to label_OwnershipChangeInOctober2007Member" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OwnershipChangesInJune2009AndDecember2009Member" xlink:label="OwnershipChangesInJune2009AndDecember2009Member" xlink:title="OwnershipChangesInJune2009AndDecember2009Member" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangesInJune2009AndDecember2009Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OwnershipChangesInJune2009AndDecember2009Member" xml:lang="en-US" id="label_OwnershipChangesInJune2009AndDecember2009Member">Ownership Changes in June2009 and December2009 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangesInJune2009AndDecember2009Member" xlink:to="label_OwnershipChangesInJune2009AndDecember2009Member" xlink:title="label: OwnershipChangesInJune2009AndDecember2009Member to label_OwnershipChangesInJune2009AndDecember2009Member" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangesInJune2009AndDecember2009Member_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OwnershipChangesInJune2009AndDecember2009Member" xml:lang="en-US" id="label_OwnershipChangesInJune2009AndDecember2009Member_2">Details pertaining to ownership changes June 2009 and December 2009.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangesInJune2009AndDecember2009Member" xlink:to="label_OwnershipChangesInJune2009AndDecember2009Member_2" xlink:title="label: OwnershipChangesInJune2009AndDecember2009Member to label_OwnershipChangesInJune2009AndDecember2009Member" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OwnershipChangesInJune2009AndDecember2009Member_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OwnershipChangesInJune2009AndDecember2009Member" xml:lang="en-US" id="label_OwnershipChangesInJune2009AndDecember2009Member_3">Ownership changes in June 2009 and December 2009</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipChangesInJune2009AndDecember2009Member" xlink:to="label_OwnershipChangesInJune2009AndDecember2009Member_3" xlink:title="label: OwnershipChangesInJune2009AndDecember2009Member to label_OwnershipChangesInJune2009AndDecember2009Member" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:label="PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:title="PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" />
    <link:label xlink:type="resource" xlink:label="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xml:lang="en-US" id="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange">Period of Recognition of Unrealized Gain (loss) after Ownership Change</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:to="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:title="label: PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange to label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xml:lang="en-US" id="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange_2">Represents the period of recognition of unrealized gain (loss) after ownership change.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:to="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange_2" xlink:title="label: PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange to label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xml:lang="en-US" id="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange_3">Period of recognition of unrealized loss or gain after the ownership change</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" xlink:to="label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange_3" xlink:title="label: PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange to label_PeriodOfRecognitionOfUnrealizedGainLossAfterOwnershipChange" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PriorToAcquisitionMember" xlink:label="PriorToAcquisitionMember" xlink:title="PriorToAcquisitionMember" />
    <link:label xlink:type="resource" xlink:label="label_PriorToAcquisitionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PriorToAcquisitionMember" xml:lang="en-US" id="label_PriorToAcquisitionMember">Prior to Acquisition [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PriorToAcquisitionMember" xlink:to="label_PriorToAcquisitionMember" xlink:title="label: PriorToAcquisitionMember to label_PriorToAcquisitionMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PriorToAcquisitionMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PriorToAcquisitionMember" xml:lang="en-US" id="label_PriorToAcquisitionMember_2">Details prior to acquisition.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PriorToAcquisitionMember" xlink:to="label_PriorToAcquisitionMember_2" xlink:title="label: PriorToAcquisitionMember to label_PriorToAcquisitionMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PriorToAcquisitionMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PriorToAcquisitionMember" xml:lang="en-US" id="label_PriorToAcquisitionMember_3">Prior to acquisition</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PriorToAcquisitionMember" xlink:to="label_PriorToAcquisitionMember_3" xlink:title="label: PriorToAcquisitionMember to label_PriorToAcquisitionMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_PriorToMergerMember" xlink:label="PriorToMergerMember" xlink:title="PriorToMergerMember" />
    <link:label xlink:type="resource" xlink:label="label_PriorToMergerMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PriorToMergerMember" xml:lang="en-US" id="label_PriorToMergerMember">Prior to Merger [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PriorToMergerMember" xlink:to="label_PriorToMergerMember" xlink:title="label: PriorToMergerMember to label_PriorToMergerMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PriorToMergerMember_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PriorToMergerMember" xml:lang="en-US" id="label_PriorToMergerMember_2">Details prior to merger.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PriorToMergerMember" xlink:to="label_PriorToMergerMember_2" xlink:title="label: PriorToMergerMember to label_PriorToMergerMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PriorToMergerMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PriorToMergerMember" xml:lang="en-US" id="label_PriorToMergerMember_3">Prior to merger</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PriorToMergerMember" xlink:to="label_PriorToMergerMember_3" xlink:title="label: PriorToMergerMember to label_PriorToMergerMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StatusOfMergerAndAcquisitionAxis" xlink:label="StatusOfMergerAndAcquisitionAxis" xlink:title="StatusOfMergerAndAcquisitionAxis" />
    <link:label xlink:type="resource" xlink:label="label_StatusOfMergerAndAcquisitionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatusOfMergerAndAcquisitionAxis" xml:lang="en-US" id="label_StatusOfMergerAndAcquisitionAxis">Status of Merger and Acquisition [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatusOfMergerAndAcquisitionAxis" xlink:to="label_StatusOfMergerAndAcquisitionAxis" xlink:title="label: StatusOfMergerAndAcquisitionAxis to label_StatusOfMergerAndAcquisitionAxis" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StatusOfMergerAndAcquisitionAxis_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StatusOfMergerAndAcquisitionAxis" xml:lang="en-US" id="label_StatusOfMergerAndAcquisitionAxis_2">Information pertaining to status of merger and acquisition.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatusOfMergerAndAcquisitionAxis" xlink:to="label_StatusOfMergerAndAcquisitionAxis_2" xlink:title="label: StatusOfMergerAndAcquisitionAxis to label_StatusOfMergerAndAcquisitionAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_StatusOfMergerAndAcquisitionDomain" xlink:label="StatusOfMergerAndAcquisitionDomain" xlink:title="StatusOfMergerAndAcquisitionDomain" />
    <link:label xlink:type="resource" xlink:label="label_StatusOfMergerAndAcquisitionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatusOfMergerAndAcquisitionDomain" xml:lang="en-US" id="label_StatusOfMergerAndAcquisitionDomain">Status of Merger and Acquisition [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatusOfMergerAndAcquisitionDomain" xlink:to="label_StatusOfMergerAndAcquisitionDomain" xlink:title="label: StatusOfMergerAndAcquisitionDomain to label_StatusOfMergerAndAcquisitionDomain" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StatusOfMergerAndAcquisitionDomain_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StatusOfMergerAndAcquisitionDomain" xml:lang="en-US" id="label_StatusOfMergerAndAcquisitionDomain_2">Details of status of merger and acquisition.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatusOfMergerAndAcquisitionDomain" xlink:to="label_StatusOfMergerAndAcquisitionDomain_2" xlink:title="label: StatusOfMergerAndAcquisitionDomain to label_StatusOfMergerAndAcquisitionDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="DocumentFiscalYearFocus" xlink:title="DocumentFiscalYearFocus" />
    <link:label xlink:type="resource" xlink:label="label_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentFiscalYearFocus" xml:lang="en-US" id="label_DocumentFiscalYearFocus">Document Fiscal Year Focus</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentFiscalYearFocus" xlink:to="label_DocumentFiscalYearFocus" xlink:title="label: DocumentFiscalYearFocus to label_DocumentFiscalYearFocus" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:label="TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:title="TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" />
    <link:label xlink:type="resource" xlink:label="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xml:lang="en-US" id="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse">Tax Credit Carryforward Amount with Substantial Limitations on Use</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:to="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:title="label: TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse to label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xml:lang="en-US" id="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse_2">The amount of the tax credit carryforward, with substantial limitations on use before tax effects, available to reduce future taxable income under enacted tax laws.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:to="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse_2" xlink:title="label: TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse to label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xml:lang="en-US" id="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse_3">Tax credit carryforwards with substantial limitations on use</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" xlink:to="label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse_3" xlink:title="label: TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse to label_TaxCreditCarryforwardAmountWithSubstantialLimitationsOnUse" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="DocumentFiscalPeriodFocus" xlink:title="DocumentFiscalPeriodFocus" />
    <link:label xlink:type="resource" xlink:label="label_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentFiscalPeriodFocus" xml:lang="en-US" id="label_DocumentFiscalPeriodFocus">Document Fiscal Period Focus</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentFiscalPeriodFocus" xlink:to="label_DocumentFiscalPeriodFocus" xlink:title="label: DocumentFiscalPeriodFocus to label_DocumentFiscalPeriodFocus" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLossAndTaxCreditCarryforwardsTable" xlink:label="OperatingLossAndTaxCreditCarryforwardsTable" xlink:title="OperatingLossAndTaxCreditCarryforwardsTable" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossAndTaxCreditCarryforwardsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLossAndTaxCreditCarryforwardsTable" xml:lang="en-US" id="label_OperatingLossAndTaxCreditCarryforwardsTable">Operating Loss and Tax Credit Carryforwards [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossAndTaxCreditCarryforwardsTable" xlink:to="label_OperatingLossAndTaxCreditCarryforwardsTable" xlink:title="label: OperatingLossAndTaxCreditCarryforwardsTable to label_OperatingLossAndTaxCreditCarryforwardsTable" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossAndTaxCreditCarryforwardsTable_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLossAndTaxCreditCarryforwardsTable" xml:lang="en-US" id="label_OperatingLossAndTaxCreditCarryforwardsTable_2">Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss and tax credit carryforwards, including an assessment of the likelihood of utilization.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossAndTaxCreditCarryforwardsTable" xlink:to="label_OperatingLossAndTaxCreditCarryforwardsTable_2" xlink:title="label: OperatingLossAndTaxCreditCarryforwardsTable to label_OperatingLossAndTaxCreditCarryforwardsTable" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:label="CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:title="CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xml:lang="en-US" id="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember">Collaborative Arrangement for Development and Commercialization of Product [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:to="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:title="label: CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember to label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xml:lang="en-US" id="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember_2">Collaboration arrangement for development and commercialization of oral rotavirus strain</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:to="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember_2" xlink:title="label: CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember to label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xml:lang="en-US" id="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember_3">Details pertaining to collaboration arrangement for development and commercialization of product.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" xlink:to="label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember_3" xlink:title="label: CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember to label_CollaborativeArrangementForDevelopmentAndCommercializationOfProductMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RoyaltyAgreementMember" xlink:label="RoyaltyAgreementMember" xlink:title="RoyaltyAgreementMember" />
    <link:label xlink:type="resource" xlink:label="label_RoyaltyAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RoyaltyAgreementMember" xml:lang="en-US" id="label_RoyaltyAgreementMember">Royalty Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RoyaltyAgreementMember" xlink:to="label_RoyaltyAgreementMember" xlink:title="label: RoyaltyAgreementMember to label_RoyaltyAgreementMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RoyaltyAgreementMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RoyaltyAgreementMember" xml:lang="en-US" id="label_RoyaltyAgreementMember_2">Royalty Agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RoyaltyAgreementMember" xlink:to="label_RoyaltyAgreementMember_2" xlink:title="label: RoyaltyAgreementMember to label_RoyaltyAgreementMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RoyaltyAgreementMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RoyaltyAgreementMember" xml:lang="en-US" id="label_RoyaltyAgreementMember_3">Details pertaining to royalty agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RoyaltyAgreementMember" xlink:to="label_RoyaltyAgreementMember_3" xlink:title="label: RoyaltyAgreementMember to label_RoyaltyAgreementMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CincinnatiChildrensHospitalMedicalCenterMember" xlink:label="CincinnatiChildrensHospitalMedicalCenterMember" xlink:title="CincinnatiChildrensHospitalMedicalCenterMember" />
    <link:label xlink:type="resource" xlink:label="label_CincinnatiChildrensHospitalMedicalCenterMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CincinnatiChildrensHospitalMedicalCenterMember" xml:lang="en-US" id="label_CincinnatiChildrensHospitalMedicalCenterMember">Cincinnati Children's Hospital Medical Center [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CincinnatiChildrensHospitalMedicalCenterMember" xlink:to="label_CincinnatiChildrensHospitalMedicalCenterMember" xlink:title="label: CincinnatiChildrensHospitalMedicalCenterMember to label_CincinnatiChildrensHospitalMedicalCenterMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CincinnatiChildrensHospitalMedicalCenterMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CincinnatiChildrensHospitalMedicalCenterMember" xml:lang="en-US" id="label_CincinnatiChildrensHospitalMedicalCenterMember_2">Cincinnati Children's Hospital Medical Center</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CincinnatiChildrensHospitalMedicalCenterMember" xlink:to="label_CincinnatiChildrensHospitalMedicalCenterMember_2" xlink:title="label: CincinnatiChildrensHospitalMedicalCenterMember to label_CincinnatiChildrensHospitalMedicalCenterMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CincinnatiChildrensHospitalMedicalCenterMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CincinnatiChildrensHospitalMedicalCenterMember" xml:lang="en-US" id="label_CincinnatiChildrensHospitalMedicalCenterMember_3">Represents information related to Cincinnati Children's Hospital Medical Center.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CincinnatiChildrensHospitalMedicalCenterMember" xlink:to="label_CincinnatiChildrensHospitalMedicalCenterMember_3" xlink:title="label: CincinnatiChildrensHospitalMedicalCenterMember to label_CincinnatiChildrensHospitalMedicalCenterMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DukeUniversityAndThomasJeffersonUniversityMember" xlink:label="DukeUniversityAndThomasJeffersonUniversityMember" xlink:title="DukeUniversityAndThomasJeffersonUniversityMember" />
    <link:label xlink:type="resource" xlink:label="label_DukeUniversityAndThomasJeffersonUniversityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DukeUniversityAndThomasJeffersonUniversityMember" xml:lang="en-US" id="label_DukeUniversityAndThomasJeffersonUniversityMember">Represents information related to Duke University and Thomas Jefferson University.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DukeUniversityAndThomasJeffersonUniversityMember" xlink:to="label_DukeUniversityAndThomasJeffersonUniversityMember" xlink:title="label: DukeUniversityAndThomasJeffersonUniversityMember to label_DukeUniversityAndThomasJeffersonUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DukeUniversityAndThomasJeffersonUniversityMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DukeUniversityAndThomasJeffersonUniversityMember" xml:lang="en-US" id="label_DukeUniversityAndThomasJeffersonUniversityMember_2">Duke University and Thomas Jefferson University [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DukeUniversityAndThomasJeffersonUniversityMember" xlink:to="label_DukeUniversityAndThomasJeffersonUniversityMember_2" xlink:title="label: DukeUniversityAndThomasJeffersonUniversityMember to label_DukeUniversityAndThomasJeffersonUniversityMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DukeUniversityAndThomasJeffersonUniversityMember_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DukeUniversityAndThomasJeffersonUniversityMember" xml:lang="en-US" id="label_DukeUniversityAndThomasJeffersonUniversityMember_3">Duke University and Thomas Jefferson University</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DukeUniversityAndThomasJeffersonUniversityMember" xlink:to="label_DukeUniversityAndThomasJeffersonUniversityMember_3" xlink:title="label: DukeUniversityAndThomasJeffersonUniversityMember to label_DukeUniversityAndThomasJeffersonUniversityMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CommonStockSharesAvailableForSale" xlink:label="CommonStockSharesAvailableForSale" xlink:title="CommonStockSharesAvailableForSale" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAvailableForSale" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesAvailableForSale" xml:lang="en-US" id="label_CommonStockSharesAvailableForSale">Common stock available for sale (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesAvailableForSale" xlink:to="label_CommonStockSharesAvailableForSale" xlink:title="label: CommonStockSharesAvailableForSale to label_CommonStockSharesAvailableForSale" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAvailableForSale_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesAvailableForSale" xml:lang="en-US" id="label_CommonStockSharesAvailableForSale_2">Common Stock Shares Available For Sale</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesAvailableForSale" xlink:to="label_CommonStockSharesAvailableForSale_2" xlink:title="label: CommonStockSharesAvailableForSale to label_CommonStockSharesAvailableForSale" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAvailableForSale_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CommonStockSharesAvailableForSale" xml:lang="en-US" id="label_CommonStockSharesAvailableForSale_3">Represents the common stock available for sale.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesAvailableForSale" xlink:to="label_CommonStockSharesAvailableForSale_3" xlink:title="label: CommonStockSharesAvailableForSale to label_CommonStockSharesAvailableForSale" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:label="ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:title="ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" />
    <link:label xlink:type="resource" xlink:label="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xml:lang="en-US" id="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits">Expiration of Net Operating Losses and Research and Development Tax Credits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:to="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:title="label: ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits to label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xml:lang="en-US" id="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits_2">Reflects the amounts of net operating losses and research and development tax credits expired during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:to="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits_2" xlink:title="label: ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits to label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits_3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xml:lang="en-US" id="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits_3">Expiration of Net Operating Losses and Research &amp; Development Tax Credits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" xlink:to="label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits_3" xlink:title="label: ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits to label_ExpirationOfNetOperatingLossesAndResearchAndDevelopmentTaxCredits" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:label="CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:title="CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xml:lang="en-US" id="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters">Common Stock Available For Sale Lock Up Period to be Waived by Underwriters</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:to="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:title="label: CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters to label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xml:lang="en-US" id="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters_2">Lock-up period to be waived by underwriters</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:to="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters_2" xlink:title="label: CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters to label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xml:lang="en-US" id="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters_3">Represents the lock-up period to be waived by underwriters for remaining aggregate offering price available to the entity for the issuance of common stock as per the amended agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" xlink:to="label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters_3" xlink:title="label: CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters to label_CommonStockAvailableForSaleLockUpPeriodToBeWaivedByUnderwriters" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_ValueAtWhichTaxBenefitsSold" xlink:label="ValueAtWhichTaxBenefitsSold" xlink:title="ValueAtWhichTaxBenefitsSold" />
    <link:label xlink:type="resource" xlink:label="label_ValueAtWhichTaxBenefitsSold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ValueAtWhichTaxBenefitsSold" xml:lang="en-US" id="label_ValueAtWhichTaxBenefitsSold">Represents the value at which tax benefit sold by the entity during the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ValueAtWhichTaxBenefitsSold" xlink:to="label_ValueAtWhichTaxBenefitsSold" xlink:title="label: ValueAtWhichTaxBenefitsSold to label_ValueAtWhichTaxBenefitsSold" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ValueAtWhichTaxBenefitsSold_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ValueAtWhichTaxBenefitsSold" xml:lang="en-US" id="label_ValueAtWhichTaxBenefitsSold_2">Value at which Tax Benefits Sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ValueAtWhichTaxBenefitsSold" xlink:to="label_ValueAtWhichTaxBenefitsSold_2" xlink:title="label: ValueAtWhichTaxBenefitsSold to label_ValueAtWhichTaxBenefitsSold" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ValueAtWhichTaxBenefitsSold_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ValueAtWhichTaxBenefitsSold" xml:lang="en-US" id="label_ValueAtWhichTaxBenefitsSold_3">Amount of sale of New Jersey tax benefit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ValueAtWhichTaxBenefitsSold" xlink:to="label_ValueAtWhichTaxBenefitsSold_3" xlink:title="label: ValueAtWhichTaxBenefitsSold to label_ValueAtWhichTaxBenefitsSold" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:label="FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:title="FairValueAssetsAmountTransfersBetweenMeasurementLevels" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" xml:lang="en-US" id="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels">Assets transferred between the fair value measurement classifications</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:to="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:title="label: FairValueAssetsAmountTransfersBetweenMeasurementLevels to label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" xml:lang="en-US" id="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels_2">Represents the amount of transfer of assets measured on a recurring basis between Level 1, Level 2 and Level 3 of the fair value hierarchy.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:to="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels_2" xlink:title="label: FairValueAssetsAmountTransfersBetweenMeasurementLevels to label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" xml:lang="en-US" id="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels_3">Fair Value Assets Amount Transfers between Measurement Levels</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsAmountTransfersBetweenMeasurementLevels" xlink:to="label_FairValueAssetsAmountTransfersBetweenMeasurementLevels_3" xlink:title="label: FairValueAssetsAmountTransfersBetweenMeasurementLevels to label_FairValueAssetsAmountTransfersBetweenMeasurementLevels" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:label="FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:title="FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" />
    <link:label xlink:type="resource" xlink:label="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xml:lang="en-US" id="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels">Fair Value Liabilities Amount Transfers between Measurement Levels</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:to="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:title="label: FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels to label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xml:lang="en-US" id="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels_2">Liabilities transferred between the fair value measurement classifications</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:to="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels_2" xlink:title="label: FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels to label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xml:lang="en-US" id="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels_3">Represents the amount of transfer of liabilities measured on a recurring basis between Level 1, Level 2 and Level 3 of the fair value hierarchy.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" xlink:to="label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels_3" xlink:title="label: FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels to label_FairValueLiabilitiesAmountTransfersBetweenMeasurementLevels" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:label="AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:title="AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xml:lang="en-US" id="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired">Marketable securities considered to be other-than-temporarily impaired</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:to="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:title="label: AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired to label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xml:lang="en-US" id="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired_2">Represents the amount of investment in debt and equity securities considered to be other-than-temporarily impaired, categorized neither as held-to-maturity nor trading.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:to="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired_2" xlink:title="label: AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired to label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xml:lang="en-US" id="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired_3">Available For Sale Securities, Considered to be Other than Temporarily Impaired</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" xlink:to="label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired_3" xlink:title="label: AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired to label_AvailableForSaleSecuritiesConsideredToBeOtherThanTemporarilyImpaired" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_DocumentType" xlink:label="DocumentType" xlink:title="DocumentType" />
    <link:label xlink:type="resource" xlink:label="label_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentType" xml:lang="en-US" id="label_DocumentType">Document Type</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentType" xlink:to="label_DocumentType" xlink:title="label: DocumentType to label_DocumentType" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:label="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:title="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xml:lang="en-US" id="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour">Debt Instrument, Covenant Rate of Prepayment Premium in Year Four</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:to="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:title="label: DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour to label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xml:lang="en-US" id="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour_2">Rate of prepayment premium in year four (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:to="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour_2" xlink:title="label: DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour to label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xml:lang="en-US" id="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour_3">Represents the percentage of prepayment premium on the term loan to be paid in year four.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" xlink:to="label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour_3" xlink:title="label: DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour to label_DebtInstrumentCovenantRateOfPrepaymentPremiumInYearFour" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccountingPoliciesAbstract" xml:lang="en-US" id="label_AccountingPoliciesAbstract">Significant Accounting Policies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountingPoliciesAbstract" xlink:to="label_AccountingPoliciesAbstract" xlink:title="label: AccountingPoliciesAbstract to label_AccountingPoliciesAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:label="AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:title="AccumulatedOtherComprehensiveIncomeLossRollForward" />
    <link:label xlink:type="resource" xlink:label="label_AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccumulatedOtherComprehensiveIncomeLossRollForward" xml:lang="en-US" id="label_AccumulatedOtherComprehensiveIncomeLossRollForward">Accumulated Other Comprehensive Income (Loss) [Roll Forward]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:to="label_AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:title="label: AccumulatedOtherComprehensiveIncomeLossRollForward to label_AccumulatedOtherComprehensiveIncomeLossRollForward" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AccumulatedOtherComprehensiveIncomeLossRollForward_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AccumulatedOtherComprehensiveIncomeLossRollForward" xml:lang="en-US" id="label_AccumulatedOtherComprehensiveIncomeLossRollForward_2">Changes in accumulated other comprehensive income (loss) by component</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccumulatedOtherComprehensiveIncomeLossRollForward" xlink:to="label_AccumulatedOtherComprehensiveIncomeLossRollForward_2" xlink:title="label: AccumulatedOtherComprehensiveIncomeLossRollForward to label_AccumulatedOtherComprehensiveIncomeLossRollForward" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLeasesTermOfLease" xlink:label="OperatingLeasesTermOfLease" xlink:title="OperatingLeasesTermOfLease" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesTermOfLease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesTermOfLease" xml:lang="en-US" id="label_OperatingLeasesTermOfLease">Operating Leases Term of Lease</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesTermOfLease" xlink:to="label_OperatingLeasesTermOfLease" xlink:title="label: OperatingLeasesTermOfLease to label_OperatingLeasesTermOfLease" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesTermOfLease_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesTermOfLease" xml:lang="en-US" id="label_OperatingLeasesTermOfLease_2">Term of lease</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesTermOfLease" xlink:to="label_OperatingLeasesTermOfLease_2" xlink:title="label: OperatingLeasesTermOfLease to label_OperatingLeasesTermOfLease" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesTermOfLease_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLeasesTermOfLease" xml:lang="en-US" id="label_OperatingLeasesTermOfLease_3">Represents the term of lease under the lease agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesTermOfLease" xlink:to="label_OperatingLeasesTermOfLease_3" xlink:title="label: OperatingLeasesTermOfLease to label_OperatingLeasesTermOfLease" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLeasesPeriodOfRenewalOptions" xlink:label="OperatingLeasesPeriodOfRenewalOptions" xlink:title="OperatingLeasesPeriodOfRenewalOptions" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesPeriodOfRenewalOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesPeriodOfRenewalOptions" xml:lang="en-US" id="label_OperatingLeasesPeriodOfRenewalOptions">Operating Leases Period of Renewal Options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesPeriodOfRenewalOptions" xlink:to="label_OperatingLeasesPeriodOfRenewalOptions" xlink:title="label: OperatingLeasesPeriodOfRenewalOptions to label_OperatingLeasesPeriodOfRenewalOptions" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesPeriodOfRenewalOptions_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesPeriodOfRenewalOptions" xml:lang="en-US" id="label_OperatingLeasesPeriodOfRenewalOptions_2">Period of each renewal option</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesPeriodOfRenewalOptions" xlink:to="label_OperatingLeasesPeriodOfRenewalOptions_2" xlink:title="label: OperatingLeasesPeriodOfRenewalOptions to label_OperatingLeasesPeriodOfRenewalOptions" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesPeriodOfRenewalOptions_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLeasesPeriodOfRenewalOptions" xml:lang="en-US" id="label_OperatingLeasesPeriodOfRenewalOptions_3">Represents the period of each renewal option under the lease agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesPeriodOfRenewalOptions" xlink:to="label_OperatingLeasesPeriodOfRenewalOptions_3" xlink:title="label: OperatingLeasesPeriodOfRenewalOptions to label_OperatingLeasesPeriodOfRenewalOptions" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLeasesCommencementPeriodOfRentalObligations" xlink:label="OperatingLeasesCommencementPeriodOfRentalObligations" xlink:title="OperatingLeasesCommencementPeriodOfRentalObligations" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesCommencementPeriodOfRentalObligations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesCommencementPeriodOfRentalObligations" xml:lang="en-US" id="label_OperatingLeasesCommencementPeriodOfRentalObligations">Operating Leases Commencement Period of Rental Obligations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesCommencementPeriodOfRentalObligations" xlink:to="label_OperatingLeasesCommencementPeriodOfRentalObligations" xlink:title="label: OperatingLeasesCommencementPeriodOfRentalObligations to label_OperatingLeasesCommencementPeriodOfRentalObligations" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesCommencementPeriodOfRentalObligations_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesCommencementPeriodOfRentalObligations" xml:lang="en-US" id="label_OperatingLeasesCommencementPeriodOfRentalObligations_2">Period from the lease commencement date after which the Company's obligation to pay rent commences</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesCommencementPeriodOfRentalObligations" xlink:to="label_OperatingLeasesCommencementPeriodOfRentalObligations_2" xlink:title="label: OperatingLeasesCommencementPeriodOfRentalObligations to label_OperatingLeasesCommencementPeriodOfRentalObligations" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesCommencementPeriodOfRentalObligations_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLeasesCommencementPeriodOfRentalObligations" xml:lang="en-US" id="label_OperatingLeasesCommencementPeriodOfRentalObligations_3">Represents the period from the lease commencement date after which the entity's obligation to pay rent commences.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesCommencementPeriodOfRentalObligations" xlink:to="label_OperatingLeasesCommencementPeriodOfRentalObligations_3" xlink:title="label: OperatingLeasesCommencementPeriodOfRentalObligations to label_OperatingLeasesCommencementPeriodOfRentalObligations" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_OperatingLeasesNumberOfRenewalOptions" xlink:label="OperatingLeasesNumberOfRenewalOptions" xlink:title="OperatingLeasesNumberOfRenewalOptions" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesNumberOfRenewalOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesNumberOfRenewalOptions" xml:lang="en-US" id="label_OperatingLeasesNumberOfRenewalOptions">Operating Leases Number of Renewal Options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesNumberOfRenewalOptions" xlink:to="label_OperatingLeasesNumberOfRenewalOptions" xlink:title="label: OperatingLeasesNumberOfRenewalOptions to label_OperatingLeasesNumberOfRenewalOptions" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesNumberOfRenewalOptions_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesNumberOfRenewalOptions" xml:lang="en-US" id="label_OperatingLeasesNumberOfRenewalOptions_2">Number of renewal options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesNumberOfRenewalOptions" xlink:to="label_OperatingLeasesNumberOfRenewalOptions_2" xlink:title="label: OperatingLeasesNumberOfRenewalOptions to label_OperatingLeasesNumberOfRenewalOptions" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesNumberOfRenewalOptions_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_OperatingLeasesNumberOfRenewalOptions" xml:lang="en-US" id="label_OperatingLeasesNumberOfRenewalOptions_3">Represents the number of renewal options under the lease agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesNumberOfRenewalOptions" xlink:to="label_OperatingLeasesNumberOfRenewalOptions_3" xlink:title="label: OperatingLeasesNumberOfRenewalOptions to label_OperatingLeasesNumberOfRenewalOptions" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_RepaymentOfLongTermDebtPrincipalAmount" xlink:label="RepaymentOfLongTermDebtPrincipalAmount" xlink:title="RepaymentOfLongTermDebtPrincipalAmount" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentOfLongTermDebtPrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentOfLongTermDebtPrincipalAmount" xml:lang="en-US" id="label_RepaymentOfLongTermDebtPrincipalAmount">Repayment of Long Term Debt Principal Amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentOfLongTermDebtPrincipalAmount" xlink:to="label_RepaymentOfLongTermDebtPrincipalAmount" xlink:title="label: RepaymentOfLongTermDebtPrincipalAmount to label_RepaymentOfLongTermDebtPrincipalAmount" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentOfLongTermDebtPrincipalAmount_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RepaymentOfLongTermDebtPrincipalAmount" xml:lang="en-US" id="label_RepaymentOfLongTermDebtPrincipalAmount_2">Repayment of principal amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentOfLongTermDebtPrincipalAmount" xlink:to="label_RepaymentOfLongTermDebtPrincipalAmount_2" xlink:title="label: RepaymentOfLongTermDebtPrincipalAmount to label_RepaymentOfLongTermDebtPrincipalAmount" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentOfLongTermDebtPrincipalAmount_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RepaymentOfLongTermDebtPrincipalAmount" xml:lang="en-US" id="label_RepaymentOfLongTermDebtPrincipalAmount_3">Represents the amount of principal repaid by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentOfLongTermDebtPrincipalAmount" xlink:to="label_RepaymentOfLongTermDebtPrincipalAmount_3" xlink:title="label: RepaymentOfLongTermDebtPrincipalAmount to label_RepaymentOfLongTermDebtPrincipalAmount" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_DebtInstrumentInterestAndPrepaymentFees" xlink:label="DebtInstrumentInterestAndPrepaymentFees" xlink:title="DebtInstrumentInterestAndPrepaymentFees" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestAndPrepaymentFees" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentInterestAndPrepaymentFees" xml:lang="en-US" id="label_DebtInstrumentInterestAndPrepaymentFees">Represents the amount of interest, prepayment and final payment fees paid by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestAndPrepaymentFees" xlink:to="label_DebtInstrumentInterestAndPrepaymentFees" xlink:title="label: DebtInstrumentInterestAndPrepaymentFees to label_DebtInstrumentInterestAndPrepaymentFees" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestAndPrepaymentFees_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentInterestAndPrepaymentFees" xml:lang="en-US" id="label_DebtInstrumentInterestAndPrepaymentFees_2">Debt Instrument, Interest and Prepayment Fees</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestAndPrepaymentFees" xlink:to="label_DebtInstrumentInterestAndPrepaymentFees_2" xlink:title="label: DebtInstrumentInterestAndPrepaymentFees to label_DebtInstrumentInterestAndPrepaymentFees" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestAndPrepaymentFees_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentInterestAndPrepaymentFees" xml:lang="en-US" id="label_DebtInstrumentInterestAndPrepaymentFees_3">Amount of interest, prepayment and final payment fees</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestAndPrepaymentFees" xlink:to="label_DebtInstrumentInterestAndPrepaymentFees_3" xlink:title="label: DebtInstrumentInterestAndPrepaymentFees to label_DebtInstrumentInterestAndPrepaymentFees" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:label="AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:title="AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xml:lang="en-US" id="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments">Available for Sale Securities, Gross Unrealized Gain Accumulated in Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:to="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:title="label: AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments to label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xml:lang="en-US" id="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments_2">Amount of accumulated unrealized gain before deducting unrealized loss on investments in available-for-sale securities impacting investments.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:to="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments_2" xlink:title="label: AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments to label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments_3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xml:lang="en-US" id="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments_3">Gross Unrealized Gains</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" xlink:to="label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments_3" xlink:title="label: AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments to label_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:label="AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:title="AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xml:lang="en-US" id="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments">Available for Sale Securities, Gross Unrealized Loss Accumulated in Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:to="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:title="label: AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments to label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xml:lang="en-US" id="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments_2">Amount of accumulated unrealized loss before deducting unrealized gain on investments in available-for-sale securities impacting investments.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:to="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments_2" xlink:title="label: AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments to label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments_3" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:title="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xml:lang="en-US" id="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments_3">Gross Unrealized Losses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" xlink:to="label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments_3" xlink:title="label: AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments to label_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:label="IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:title="IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" />
    <link:label xlink:type="resource" xlink:label="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xml:lang="en-US" id="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance">Income Tax Expense (Benefit) before Change in Valuation Allowance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:to="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:title="label: IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance to label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xml:lang="en-US" id="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance_2">Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations before the effect of the change during the period in the valuation allowance for a specified deferred tax asset.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:to="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance_2" xlink:title="label: IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance to label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance_3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xml:lang="en-US" id="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance_3">Income tax benefit (provision) before valuation allowance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" xlink:to="label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance_3" xlink:title="label: IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance to label_IncomeTaxExpenseBenefitBeforeChangeInValuationAllowance" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:label="CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:title="CollaborativeArrangementNumberOfAntiHIVAntibodies" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementNumberOfAntiHIVAntibodies" xml:lang="en-US" id="label_CollaborativeArrangementNumberOfAntiHIVAntibodies">Represents the number of anti-HIV antibodies which are subject to the agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:to="label_CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:title="label: CollaborativeArrangementNumberOfAntiHIVAntibodies to label_CollaborativeArrangementNumberOfAntiHIVAntibodies" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementNumberOfAntiHIVAntibodies_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementNumberOfAntiHIVAntibodies" xml:lang="en-US" id="label_CollaborativeArrangementNumberOfAntiHIVAntibodies_2">Collaborative Arrangement Number of Anti HIV Antibodies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:to="label_CollaborativeArrangementNumberOfAntiHIVAntibodies_2" xlink:title="label: CollaborativeArrangementNumberOfAntiHIVAntibodies to label_CollaborativeArrangementNumberOfAntiHIVAntibodies" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementNumberOfAntiHIVAntibodies_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementNumberOfAntiHIVAntibodies" xml:lang="en-US" id="label_CollaborativeArrangementNumberOfAntiHIVAntibodies_3">Number of anti-HIV antibodies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementNumberOfAntiHIVAntibodies" xlink:to="label_CollaborativeArrangementNumberOfAntiHIVAntibodies_3" xlink:title="label: CollaborativeArrangementNumberOfAntiHIVAntibodies to label_CollaborativeArrangementNumberOfAntiHIVAntibodies" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:label="CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:title="CollaborativeArrangementEstimatedCostForDevelopmentServices" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementEstimatedCostForDevelopmentServices" xml:lang="en-US" id="label_CollaborativeArrangementEstimatedCostForDevelopmentServices">Collaborative Arrangement Estimated Cost for Development Services</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:to="label_CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:title="label: CollaborativeArrangementEstimatedCostForDevelopmentServices to label_CollaborativeArrangementEstimatedCostForDevelopmentServices" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementEstimatedCostForDevelopmentServices_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementEstimatedCostForDevelopmentServices" xml:lang="en-US" id="label_CollaborativeArrangementEstimatedCostForDevelopmentServices_2">Represents the estimated cost for the development services under the agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:to="label_CollaborativeArrangementEstimatedCostForDevelopmentServices_2" xlink:title="label: CollaborativeArrangementEstimatedCostForDevelopmentServices to label_CollaborativeArrangementEstimatedCostForDevelopmentServices" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementEstimatedCostForDevelopmentServices_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementEstimatedCostForDevelopmentServices" xml:lang="en-US" id="label_CollaborativeArrangementEstimatedCostForDevelopmentServices_3">Approved project plan for the development services</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementEstimatedCostForDevelopmentServices" xlink:to="label_CollaborativeArrangementEstimatedCostForDevelopmentServices_3" xlink:title="label: CollaborativeArrangementEstimatedCostForDevelopmentServices to label_CollaborativeArrangementEstimatedCostForDevelopmentServices" use="optional" />
    <link:loc xlink:type="locator" xlink:href="cldx-20130930.xsd#cldx_CollaborativeArrangementUpfrontPaymentAmount" xlink:label="CollaborativeArrangementUpfrontPaymentAmount" xlink:title="CollaborativeArrangementUpfrontPaymentAmount" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementUpfrontPaymentAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementUpfrontPaymentAmount" xml:lang="en-US" id="label_CollaborativeArrangementUpfrontPaymentAmount">Collaborative Arrangement Upfront Payment Amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementUpfrontPaymentAmount" xlink:to="label_CollaborativeArrangementUpfrontPaymentAmount" xlink:title="label: CollaborativeArrangementUpfrontPaymentAmount to label_CollaborativeArrangementUpfrontPaymentAmount" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementUpfrontPaymentAmount_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementUpfrontPaymentAmount" xml:lang="en-US" id="label_CollaborativeArrangementUpfrontPaymentAmount_2">Upfront payment recognized as revenue over the term of the agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementUpfrontPaymentAmount" xlink:to="label_CollaborativeArrangementUpfrontPaymentAmount_2" xlink:title="label: CollaborativeArrangementUpfrontPaymentAmount to label_CollaborativeArrangementUpfrontPaymentAmount" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementUpfrontPaymentAmount_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CollaborativeArrangementUpfrontPaymentAmount" xml:lang="en-US" id="label_CollaborativeArrangementUpfrontPaymentAmount_3">Represents the amount of upfront payment for development services, which is recorded by the entity as revenue over the term of the agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementUpfrontPaymentAmount" xlink:to="label_CollaborativeArrangementUpfrontPaymentAmount_3" xlink:title="label: CollaborativeArrangementUpfrontPaymentAmount to label_CollaborativeArrangementUpfrontPaymentAmount" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent" xlink:label="AccountsAndOtherReceivablesNetCurrent" xlink:title="AccountsAndOtherReceivablesNetCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AccountsAndOtherReceivablesNetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AccountsAndOtherReceivablesNetCurrent" xml:lang="en-US" id="label_AccountsAndOtherReceivablesNetCurrent">Accounts and Other Receivables</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsAndOtherReceivablesNetCurrent" xlink:to="label_AccountsAndOtherReceivablesNetCurrent" xlink:title="label: AccountsAndOtherReceivablesNetCurrent to label_AccountsAndOtherReceivablesNetCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AccountsAndOtherReceivablesNetCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccountsAndOtherReceivablesNetCurrent" xml:lang="en-US" id="label_AccountsAndOtherReceivablesNetCurrent_2">Accounts and Other Receivables, Net, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsAndOtherReceivablesNetCurrent" xlink:to="label_AccountsAndOtherReceivablesNetCurrent_2" xlink:title="label: AccountsAndOtherReceivablesNetCurrent to label_AccountsAndOtherReceivablesNetCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" xlink:label="AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" xlink:title="AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" />
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    <link:label xlink:type="resource" xlink:label="label_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AdditionalPaidInCapitalMember" xml:lang="en-US" id="label_AdditionalPaidInCapitalMember">Additional Paid-In Capital</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="AllocatedShareBasedCompensationExpense" xlink:title="AllocatedShareBasedCompensationExpense" />
    <link:label xlink:type="resource" xlink:label="label_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AllocatedShareBasedCompensationExpense" xml:lang="en-US" id="label_AllocatedShareBasedCompensationExpense">Total stock-based compensation expense (in dollars)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllocatedShareBasedCompensationExpense" xlink:to="label_AllocatedShareBasedCompensationExpense" xlink:title="label: AllocatedShareBasedCompensationExpense to label_AllocatedShareBasedCompensationExpense" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AllocatedShareBasedCompensationExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AllocatedShareBasedCompensationExpense" xml:lang="en-US" id="label_AllocatedShareBasedCompensationExpense_2">Allocated Share-based Compensation Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllocatedShareBasedCompensationExpense" xlink:to="label_AllocatedShareBasedCompensationExpense_2" xlink:title="label: AllocatedShareBasedCompensationExpense to label_AllocatedShareBasedCompensationExpense" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_AmortizationOfIntangibleAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AmortizationOfIntangibleAssets" xml:lang="en-US" id="label_AmortizationOfIntangibleAssets">Amortization of Acquired Intangible Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfIntangibleAssets" xlink:to="label_AmortizationOfIntangibleAssets" xlink:title="label: AmortizationOfIntangibleAssets to label_AmortizationOfIntangibleAssets" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmortizationOfIntangibleAssets_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_AmortizationOfIntangibleAssets" xml:lang="en-US" id="label_AmortizationOfIntangibleAssets_2">Amortization of Intangible Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfIntangibleAssets" xlink:to="label_AmortizationOfIntangibleAssets_2" xlink:title="label: AmortizationOfIntangibleAssets to label_AmortizationOfIntangibleAssets" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmortizationOfIntangibleAssets_3" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:title="label_AmortizationOfIntangibleAssets" xml:lang="en-US" id="label_AmortizationOfIntangibleAssets_3">Amortization expense for intangible assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfIntangibleAssets" xlink:to="label_AmortizationOfIntangibleAssets_3" xlink:title="label: AmortizationOfIntangibleAssets to label_AmortizationOfIntangibleAssets" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_AmortizationOfIntangibleAssets_4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortizationOfIntangibleAssets" xml:lang="en-US" id="label_AmortizationOfIntangibleAssets_4">Amortization of Intangible Assets</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AmortizationOfDebtDiscountPremium" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AmortizationOfDebtDiscountPremium" xml:lang="en-US" id="label_AmortizationOfDebtDiscountPremium">Non-Cash Interest Expense</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AmortizationOfDebtDiscountPremium_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortizationOfDebtDiscountPremium" xml:lang="en-US" id="label_AmortizationOfDebtDiscountPremium_2">Amortization of Debt Discount (Premium)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" />
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    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_4" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:title="label_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xml:lang="en-US" id="label_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_4">Other Long-Term Liabilities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CollaborativeArrangementDisclosureTextBlock" xml:lang="en-US" id="label_CollaborativeArrangementDisclosureTextBlock">Rockefeller University</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CollaborativeArrangementDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CollaborativeArrangementDisclosureTextBlock" xml:lang="en-US" id="label_CollaborativeArrangementDisclosureTextBlock_2">Collaborative Arrangement Disclosure [Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingencies_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommitmentsAndContingencies" xml:lang="en-US" id="label_CommitmentsAndContingencies_2">Commitments and Contingencies</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingenciesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommitmentsAndContingenciesDisclosureTextBlock" xml:lang="en-US" id="label_CommitmentsAndContingenciesDisclosureTextBlock">Commitments and Contingent Liabilities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingenciesDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommitmentsAndContingenciesDisclosureTextBlock" xml:lang="en-US" id="label_CommitmentsAndContingenciesDisclosureTextBlock_2">Commitments and Contingencies Disclosure [Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockParOrStatedValuePerShare" xml:lang="en-US" id="label_CommonStockParOrStatedValuePerShare">Common Stock, Par Value (in dollars per share)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonStockParOrStatedValuePerShare_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockParOrStatedValuePerShare" xml:lang="en-US" id="label_CommonStockParOrStatedValuePerShare_2">Common Stock, Par or Stated Value Per Share</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember">Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="label_CommonStockMember" xlink:title="label: CommonStockMember to label_CommonStockMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember_2">Common Stock [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_CommonStockValue" xml:lang="en-US" id="label_CommonStockValue">Common Stock, $.001 Par Value; 297,000,000 Shares Authorized; 81,108,109 and 64,359,513 Shares Issued and Outstanding at September 30, 2013 and December 31, 2012, respectively</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonStockValue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockValue" xml:lang="en-US" id="label_CommonStockValue_2">Common Stock, Value, Issued</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued">Common Stock, Shares Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued_2" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued_2">Balance (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued_2" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued_3" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued_3">Balance (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued_3" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued_4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued_4">Common stock issued (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued_4" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued_5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued_5">Common Stock, Shares, Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued_5" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesAuthorized" xml:lang="en-US" id="label_CommonStockSharesAuthorized">Common Stock, Shares Authorized</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAuthorized_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesAuthorized" xml:lang="en-US" id="label_CommonStockSharesAuthorized_2">Common Stock, Shares Authorized</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CompensationAndRetirementDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CompensationAndRetirementDisclosureAbstract" xml:lang="en-US" id="label_CompensationAndRetirementDisclosureAbstract">RETIREMENT SAVINGS PLAN</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xml:lang="en-US" id="label_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract">Principal components of the deferred tax assets and liabilities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ComprehensiveIncomeNetOfTaxAbstract" xml:lang="en-US" id="label_ComprehensiveIncomeNetOfTaxAbstract">COMPREHENSIVE LOSS:</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNetOfTaxAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ComprehensiveIncomeNetOfTaxAbstract" xml:lang="en-US" id="label_ComprehensiveIncomeNetOfTaxAbstract_2">Comprehensive Loss</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNetOfTaxAbstract" xlink:to="label_ComprehensiveIncomeNetOfTaxAbstract_2" xlink:title="label: ComprehensiveIncomeNetOfTaxAbstract to label_ComprehensiveIncomeNetOfTaxAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:label="ComprehensiveIncomePolicyPolicyTextBlock" xlink:title="ComprehensiveIncomePolicyPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomePolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ComprehensiveIncomePolicyPolicyTextBlock" xml:lang="en-US" id="label_ComprehensiveIncomePolicyPolicyTextBlock">Comprehensive Loss</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomePolicyPolicyTextBlock" xlink:to="label_ComprehensiveIncomePolicyPolicyTextBlock" xlink:title="label: ComprehensiveIncomePolicyPolicyTextBlock to label_ComprehensiveIncomePolicyPolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomePolicyPolicyTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ComprehensiveIncomePolicyPolicyTextBlock" xml:lang="en-US" id="label_ComprehensiveIncomePolicyPolicyTextBlock_2">Comprehensive Income, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomePolicyPolicyTextBlock" xlink:to="label_ComprehensiveIncomePolicyPolicyTextBlock_2" xlink:title="label: ComprehensiveIncomePolicyPolicyTextBlock to label_ComprehensiveIncomePolicyPolicyTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="ComprehensiveIncomeNetOfTax" xlink:title="ComprehensiveIncomeNetOfTax" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_ComprehensiveIncomeNetOfTax" xml:lang="en-US" id="label_ComprehensiveIncomeNetOfTax">Comprehensive Loss</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="label_ComprehensiveIncomeNetOfTax" xlink:title="label: ComprehensiveIncomeNetOfTax to label_ComprehensiveIncomeNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNetOfTax_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ComprehensiveIncomeNetOfTax" xml:lang="en-US" id="label_ComprehensiveIncomeNetOfTax_2">Comprehensive Loss</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="label_ComprehensiveIncomeNetOfTax_2" xlink:title="label: ComprehensiveIncomeNetOfTax to label_ComprehensiveIncomeNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNetOfTax_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ComprehensiveIncomeNetOfTax" xml:lang="en-US" id="label_ComprehensiveIncomeNetOfTax_3">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="label_ComprehensiveIncomeNetOfTax_3" xlink:title="label: ComprehensiveIncomeNetOfTax to label_ComprehensiveIncomeNetOfTax" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="ComprehensiveIncomeNoteTextBlock" xlink:title="ComprehensiveIncomeNoteTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNoteTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ComprehensiveIncomeNoteTextBlock" xml:lang="en-US" id="label_ComprehensiveIncomeNoteTextBlock">Comprehensive Loss</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNoteTextBlock" xlink:to="label_ComprehensiveIncomeNoteTextBlock" xlink:title="label: ComprehensiveIncomeNoteTextBlock to label_ComprehensiveIncomeNoteTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ComprehensiveIncomeNoteTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ComprehensiveIncomeNoteTextBlock" xml:lang="en-US" id="label_ComprehensiveIncomeNoteTextBlock_2">Comprehensive Income (Loss) Note [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNoteTextBlock" xlink:to="label_ComprehensiveIncomeNoteTextBlock_2" xlink:title="label: ComprehensiveIncomeNoteTextBlock to label_ComprehensiveIncomeNoteTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComputerEquipmentMember" xlink:label="ComputerEquipmentMember" xlink:title="ComputerEquipmentMember" />
    <link:label xlink:type="resource" xlink:label="label_ComputerEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ComputerEquipmentMember" xml:lang="en-US" id="label_ComputerEquipmentMember">Computer equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComputerEquipmentMember" xlink:to="label_ComputerEquipmentMember" xlink:title="label: ComputerEquipmentMember to label_ComputerEquipmentMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ComputerEquipmentMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ComputerEquipmentMember" xml:lang="en-US" id="label_ComputerEquipmentMember_2">Computer Equipment [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComputerEquipmentMember" xlink:to="label_ComputerEquipmentMember_2" xlink:title="label: ComputerEquipmentMember to label_ComputerEquipmentMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="ConcentrationRiskTypeDomain" xlink:title="ConcentrationRiskTypeDomain" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskTypeDomain" xml:lang="en-US" id="label_ConcentrationRiskTypeDomain">Concentration Risk Type [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskTypeDomain" xlink:to="label_ConcentrationRiskTypeDomain" xlink:title="label: ConcentrationRiskTypeDomain to label_ConcentrationRiskTypeDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="ConcentrationRiskLineItems" xlink:title="ConcentrationRiskLineItems" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConcentrationRiskLineItems" xml:lang="en-US" id="label_ConcentrationRiskLineItems">Concentration risk</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskLineItems" xlink:to="label_ConcentrationRiskLineItems" xlink:title="label: ConcentrationRiskLineItems to label_ConcentrationRiskLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskLineItems" xml:lang="en-US" id="label_ConcentrationRiskLineItems_2">Concentration Risk [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskLineItems" xlink:to="label_ConcentrationRiskLineItems_2" xlink:title="label: ConcentrationRiskLineItems to label_ConcentrationRiskLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="ConcentrationRiskBenchmarkDomain" xlink:title="ConcentrationRiskBenchmarkDomain" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskBenchmarkDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskBenchmarkDomain" xml:lang="en-US" id="label_ConcentrationRiskBenchmarkDomain">Concentration Risk Benchmark [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskBenchmarkDomain" xlink:to="label_ConcentrationRiskBenchmarkDomain" xlink:title="label: ConcentrationRiskBenchmarkDomain to label_ConcentrationRiskBenchmarkDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="ConcentrationRiskCreditRisk" xlink:title="ConcentrationRiskCreditRisk" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskCreditRisk" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConcentrationRiskCreditRisk" xml:lang="en-US" id="label_ConcentrationRiskCreditRisk">Concentration of Credit Risk</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskCreditRisk" xlink:to="label_ConcentrationRiskCreditRisk" xlink:title="label: ConcentrationRiskCreditRisk to label_ConcentrationRiskCreditRisk" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskCreditRisk_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskCreditRisk" xml:lang="en-US" id="label_ConcentrationRiskCreditRisk_2">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskCreditRisk" xlink:to="label_ConcentrationRiskCreditRisk_2" xlink:title="label: ConcentrationRiskCreditRisk to label_ConcentrationRiskCreditRisk" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="ConcentrationRiskByTypeAxis" xlink:title="ConcentrationRiskByTypeAxis" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskByTypeAxis" xml:lang="en-US" id="label_ConcentrationRiskByTypeAxis">Concentration Risk Type [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskByTypeAxis" xlink:to="label_ConcentrationRiskByTypeAxis" xlink:title="label: ConcentrationRiskByTypeAxis to label_ConcentrationRiskByTypeAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="ConcentrationRiskTable" xlink:title="ConcentrationRiskTable" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskTable" xml:lang="en-US" id="label_ConcentrationRiskTable">Concentration Risk [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskTable" xlink:to="label_ConcentrationRiskTable" xlink:title="label: ConcentrationRiskTable to label_ConcentrationRiskTable" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="ConcentrationRiskByBenchmarkAxis" xlink:title="ConcentrationRiskByBenchmarkAxis" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskByBenchmarkAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskByBenchmarkAxis" xml:lang="en-US" id="label_ConcentrationRiskByBenchmarkAxis">Concentration Risk Benchmark [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskByBenchmarkAxis" xlink:to="label_ConcentrationRiskByBenchmarkAxis" xlink:title="label: ConcentrationRiskByBenchmarkAxis to label_ConcentrationRiskByBenchmarkAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="ConcentrationRiskPercentage1" xlink:title="ConcentrationRiskPercentage1" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskPercentage1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConcentrationRiskPercentage1" xml:lang="en-US" id="label_ConcentrationRiskPercentage1">Concentration risk (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskPercentage1" xlink:to="label_ConcentrationRiskPercentage1" xlink:title="label: ConcentrationRiskPercentage1 to label_ConcentrationRiskPercentage1" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConcentrationRiskPercentage1_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConcentrationRiskPercentage1" xml:lang="en-US" id="label_ConcentrationRiskPercentage1_2">Concentration Risk, Percentage</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskPercentage1" xlink:to="label_ConcentrationRiskPercentage1_2" xlink:title="label: ConcentrationRiskPercentage1 to label_ConcentrationRiskPercentage1" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="ConstructionInProgressMember" xlink:title="ConstructionInProgressMember" />
    <link:label xlink:type="resource" xlink:label="label_ConstructionInProgressMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConstructionInProgressMember" xml:lang="en-US" id="label_ConstructionInProgressMember">Construction in Progress</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConstructionInProgressMember" xlink:to="label_ConstructionInProgressMember" xlink:title="label: ConstructionInProgressMember to label_ConstructionInProgressMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConstructionInProgressMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConstructionInProgressMember" xml:lang="en-US" id="label_ConstructionInProgressMember_2">Construction in Progress [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConstructionInProgressMember" xlink:to="label_ConstructionInProgressMember_2" xlink:title="label: ConstructionInProgressMember to label_ConstructionInProgressMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConvertibleSubordinatedDebtCurrent" xlink:label="ConvertibleSubordinatedDebtCurrent" xlink:title="ConvertibleSubordinatedDebtCurrent" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleSubordinatedDebtCurrent" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtCurrent">Convertible Subordinated Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtCurrent" xlink:to="label_ConvertibleSubordinatedDebtCurrent" xlink:title="label: ConvertibleSubordinatedDebtCurrent to label_ConvertibleSubordinatedDebtCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleSubordinatedDebtCurrent" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtCurrent_2">Convertible Subordinated Debt, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtCurrent" xlink:to="label_ConvertibleSubordinatedDebtCurrent_2" xlink:title="label: ConvertibleSubordinatedDebtCurrent to label_ConvertibleSubordinatedDebtCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConvertibleSubordinatedDebtNoncurrent" xlink:label="ConvertibleSubordinatedDebtNoncurrent" xlink:title="ConvertibleSubordinatedDebtNoncurrent" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleSubordinatedDebtNoncurrent" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtNoncurrent">Convertible Subordinated Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtNoncurrent" xlink:to="label_ConvertibleSubordinatedDebtNoncurrent" xlink:title="label: ConvertibleSubordinatedDebtNoncurrent to label_ConvertibleSubordinatedDebtNoncurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtNoncurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleSubordinatedDebtNoncurrent" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtNoncurrent_2">Convertible Subordinated Debt, Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtNoncurrent" xlink:to="label_ConvertibleSubordinatedDebtNoncurrent_2" xlink:title="label: ConvertibleSubordinatedDebtNoncurrent to label_ConvertibleSubordinatedDebtNoncurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConvertibleSubordinatedDebtMember" xlink:label="ConvertibleSubordinatedDebtMember" xlink:title="ConvertibleSubordinatedDebtMember" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleSubordinatedDebtMember" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtMember">Convertible subordinated debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtMember" xlink:to="label_ConvertibleSubordinatedDebtMember" xlink:title="label: ConvertibleSubordinatedDebtMember to label_ConvertibleSubordinatedDebtMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtMember_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_ConvertibleSubordinatedDebtMember" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtMember_2">4% convertible subordinated debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtMember" xlink:to="label_ConvertibleSubordinatedDebtMember_2" xlink:title="label: ConvertibleSubordinatedDebtMember to label_ConvertibleSubordinatedDebtMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebtMember_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleSubordinatedDebtMember" xml:lang="en-US" id="label_ConvertibleSubordinatedDebtMember_3">Convertible Subordinated Debt [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebtMember" xlink:to="label_ConvertibleSubordinatedDebtMember_3" xlink:title="label: ConvertibleSubordinatedDebtMember to label_ConvertibleSubordinatedDebtMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConvertibleSubordinatedDebt" xlink:label="ConvertibleSubordinatedDebt" xlink:title="ConvertibleSubordinatedDebt" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleSubordinatedDebt" xml:lang="en-US" id="label_ConvertibleSubordinatedDebt">Convertible subordinate debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebt" xlink:to="label_ConvertibleSubordinatedDebt" xlink:title="label: ConvertibleSubordinatedDebt to label_ConvertibleSubordinatedDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSubordinatedDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleSubordinatedDebt" xml:lang="en-US" id="label_ConvertibleSubordinatedDebt_2">Convertible Subordinated Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSubordinatedDebt" xlink:to="label_ConvertibleSubordinatedDebt_2" xlink:title="label: ConvertibleSubordinatedDebt to label_ConvertibleSubordinatedDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="CorporateDebtSecuritiesMember" xlink:title="CorporateDebtSecuritiesMember" />
    <link:label xlink:type="resource" xlink:label="label_CorporateDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CorporateDebtSecuritiesMember" xml:lang="en-US" id="label_CorporateDebtSecuritiesMember">Corporate debt securities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CorporateDebtSecuritiesMember" xlink:to="label_CorporateDebtSecuritiesMember" xlink:title="label: CorporateDebtSecuritiesMember to label_CorporateDebtSecuritiesMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CorporateDebtSecuritiesMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CorporateDebtSecuritiesMember" xml:lang="en-US" id="label_CorporateDebtSecuritiesMember_2">Corporate Debt Securities [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CorporateDebtSecuritiesMember" xlink:to="label_CorporateDebtSecuritiesMember_2" xlink:title="label: CorporateDebtSecuritiesMember to label_CorporateDebtSecuritiesMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostOfReimbursableExpense" xlink:label="CostOfReimbursableExpense" xlink:title="CostOfReimbursableExpense" />
    <link:label xlink:type="resource" xlink:label="label_CostOfReimbursableExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CostOfReimbursableExpense" xml:lang="en-US" id="label_CostOfReimbursableExpense">Reimbursable costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfReimbursableExpense" xlink:to="label_CostOfReimbursableExpense" xlink:title="label: CostOfReimbursableExpense to label_CostOfReimbursableExpense" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CostOfReimbursableExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOfReimbursableExpense" xml:lang="en-US" id="label_CostOfReimbursableExpense_2">Cost of Reimbursable Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfReimbursableExpense" xlink:to="label_CostOfReimbursableExpense_2" xlink:title="label: CostOfReimbursableExpense to label_CostOfReimbursableExpense" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="CostsAndExpensesAbstract" xlink:title="CostsAndExpensesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CostsAndExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CostsAndExpensesAbstract" xml:lang="en-US" id="label_CostsAndExpensesAbstract">OPERATING EXPENSE:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpensesAbstract" xlink:to="label_CostsAndExpensesAbstract" xlink:title="label: CostsAndExpensesAbstract to label_CostsAndExpensesAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CostsAndExpensesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostsAndExpensesAbstract" xml:lang="en-US" id="label_CostsAndExpensesAbstract_2">Costs and Expenses [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpensesAbstract" xlink:to="label_CostsAndExpensesAbstract_2" xlink:title="label: CostsAndExpensesAbstract to label_CostsAndExpensesAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="CostsAndExpenses" xlink:title="CostsAndExpenses" />
    <link:label xlink:type="resource" xlink:label="label_CostsAndExpenses" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_CostsAndExpenses" xml:lang="en-US" id="label_CostsAndExpenses">Total Operating Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpenses" xlink:to="label_CostsAndExpenses" xlink:title="label: CostsAndExpenses to label_CostsAndExpenses" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CostsAndExpenses_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostsAndExpenses" xml:lang="en-US" id="label_CostsAndExpenses_2">Costs and Expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpenses" xlink:to="label_CostsAndExpenses_2" xlink:title="label: CostsAndExpenses to label_CostsAndExpenses" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CumulativePreferredStockMember" xlink:label="CumulativePreferredStockMember" xlink:title="CumulativePreferredStockMember" />
    <link:label xlink:type="resource" xlink:label="label_CumulativePreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CumulativePreferredStockMember" xml:lang="en-US" id="label_CumulativePreferredStockMember">Series C-1 Preferred Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePreferredStockMember" xlink:to="label_CumulativePreferredStockMember" xlink:title="label: CumulativePreferredStockMember to label_CumulativePreferredStockMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CumulativePreferredStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CumulativePreferredStockMember" xml:lang="en-US" id="label_CumulativePreferredStockMember_2">Cumulative Preferred Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePreferredStockMember" xlink:to="label_CumulativePreferredStockMember_2" xlink:title="label: CumulativePreferredStockMember to label_CumulativePreferredStockMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="CustomerConcentrationRiskMember" xlink:title="CustomerConcentrationRiskMember" />
    <link:label xlink:type="resource" xlink:label="label_CustomerConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CustomerConcentrationRiskMember" xml:lang="en-US" id="label_CustomerConcentrationRiskMember">Customer concentration</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerConcentrationRiskMember" xlink:to="label_CustomerConcentrationRiskMember" xlink:title="label: CustomerConcentrationRiskMember to label_CustomerConcentrationRiskMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CustomerConcentrationRiskMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CustomerConcentrationRiskMember" xml:lang="en-US" id="label_CustomerConcentrationRiskMember_2">Customer Concentration Risk [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerConcentrationRiskMember" xlink:to="label_CustomerConcentrationRiskMember_2" xlink:title="label: CustomerConcentrationRiskMember to label_CustomerConcentrationRiskMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xlink:label="DebtInstrumentDescriptionOfVariableRateBasis" xlink:title="DebtInstrumentDescriptionOfVariableRateBasis" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentDescriptionOfVariableRateBasis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentDescriptionOfVariableRateBasis" xml:lang="en-US" id="label_DebtInstrumentDescriptionOfVariableRateBasis">Basis of interest rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentDescriptionOfVariableRateBasis" xlink:to="label_DebtInstrumentDescriptionOfVariableRateBasis" xlink:title="label: DebtInstrumentDescriptionOfVariableRateBasis to label_DebtInstrumentDescriptionOfVariableRateBasis" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentDescriptionOfVariableRateBasis_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentDescriptionOfVariableRateBasis" xml:lang="en-US" id="label_DebtInstrumentDescriptionOfVariableRateBasis_2">Debt Instrument, Description of Variable Rate Basis</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentDescriptionOfVariableRateBasis" xlink:to="label_DebtInstrumentDescriptionOfVariableRateBasis_2" xlink:title="label: DebtInstrumentDescriptionOfVariableRateBasis to label_DebtInstrumentDescriptionOfVariableRateBasis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentLineItems" xml:lang="en-US" id="label_DebtInstrumentLineItems">Term Loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLineItems" xlink:to="label_DebtInstrumentLineItems" xlink:title="label: DebtInstrumentLineItems to label_DebtInstrumentLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLineItems_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_DebtInstrumentLineItems" xml:lang="en-US" id="label_DebtInstrumentLineItems_2">Other Long-Term Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLineItems" xlink:to="label_DebtInstrumentLineItems_2" xlink:title="label: DebtInstrumentLineItems to label_DebtInstrumentLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLineItems_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentLineItems" xml:lang="en-US" id="label_DebtInstrumentLineItems_3">Debt Instrument [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLineItems" xlink:to="label_DebtInstrumentLineItems_3" xlink:title="label: DebtInstrumentLineItems to label_DebtInstrumentLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentTable" xml:lang="en-US" id="label_DebtInstrumentTable">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentTable" xlink:to="label_DebtInstrumentTable" xlink:title="label: DebtInstrumentTable to label_DebtInstrumentTable" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:label="DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:title="DebtInstrumentConvertibleNumberOfEquityInstruments" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xml:lang="en-US" id="label_DebtInstrumentConvertibleNumberOfEquityInstruments">Number of shares of common stock into which debt was convertible</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:to="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:title="label: DebtInstrumentConvertibleNumberOfEquityInstruments to label_DebtInstrumentConvertibleNumberOfEquityInstruments" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleNumberOfEquityInstruments_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xml:lang="en-US" id="label_DebtInstrumentConvertibleNumberOfEquityInstruments_2">Debt Instrument, Convertible, Number of Equity Instruments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:to="label_DebtInstrumentConvertibleNumberOfEquityInstruments_2" xlink:title="label: DebtInstrumentConvertibleNumberOfEquityInstruments to label_DebtInstrumentConvertibleNumberOfEquityInstruments" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="DebtInstrumentBasisSpreadOnVariableRate1" xlink:title="DebtInstrumentBasisSpreadOnVariableRate1" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentBasisSpreadOnVariableRate1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentBasisSpreadOnVariableRate1" xml:lang="en-US" id="label_DebtInstrumentBasisSpreadOnVariableRate1">Interest rate margin (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentBasisSpreadOnVariableRate1" xlink:to="label_DebtInstrumentBasisSpreadOnVariableRate1" xlink:title="label: DebtInstrumentBasisSpreadOnVariableRate1 to label_DebtInstrumentBasisSpreadOnVariableRate1" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentBasisSpreadOnVariableRate1_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentBasisSpreadOnVariableRate1" xml:lang="en-US" id="label_DebtInstrumentBasisSpreadOnVariableRate1_2">Debt Instrument, Basis Spread on Variable Rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentBasisSpreadOnVariableRate1" xlink:to="label_DebtInstrumentBasisSpreadOnVariableRate1_2" xlink:title="label: DebtInstrumentBasisSpreadOnVariableRate1 to label_DebtInstrumentBasisSpreadOnVariableRate1" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtDisclosureAbstract" xml:lang="en-US" id="label_DebtDisclosureAbstract">Term Loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtDisclosureAbstract" xlink:to="label_DebtDisclosureAbstract" xlink:title="label: DebtDisclosureAbstract to label_DebtDisclosureAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:label="DebtInstrumentConvertibleConversionRatio1" xlink:title="DebtInstrumentConvertibleConversionRatio1" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleConversionRatio1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConvertibleConversionRatio1" xml:lang="en-US" id="label_DebtInstrumentConvertibleConversionRatio1">Rate at which debt was converted into shares of common stock (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionRatio1" xlink:to="label_DebtInstrumentConvertibleConversionRatio1" xlink:title="label: DebtInstrumentConvertibleConversionRatio1 to label_DebtInstrumentConvertibleConversionRatio1" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleConversionRatio1_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentConvertibleConversionRatio1" xml:lang="en-US" id="label_DebtInstrumentConvertibleConversionRatio1_2">Debt Instrument, Convertible, Conversion Ratio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionRatio1" xlink:to="label_DebtInstrumentConvertibleConversionRatio1_2" xlink:title="label: DebtInstrumentConvertibleConversionRatio1 to label_DebtInstrumentConvertibleConversionRatio1" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentAxis" xml:lang="en-US" id="label_DebtInstrumentAxis">Debt Instrument [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentAxis" xlink:to="label_DebtInstrumentAxis" xlink:title="label: DebtInstrumentAxis to label_DebtInstrumentAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="DebtInstrumentConvertibleConversionPrice1" xlink:title="DebtInstrumentConvertibleConversionPrice1" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleConversionPrice1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConvertibleConversionPrice1" xml:lang="en-US" id="label_DebtInstrumentConvertibleConversionPrice1">Conversion price (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionPrice1" xlink:to="label_DebtInstrumentConvertibleConversionPrice1" xlink:title="label: DebtInstrumentConvertibleConversionPrice1 to label_DebtInstrumentConvertibleConversionPrice1" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleConversionPrice1_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentConvertibleConversionPrice1" xml:lang="en-US" id="label_DebtInstrumentConvertibleConversionPrice1_2">Debt Instrument, Convertible, Conversion Price</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionPrice1" xlink:to="label_DebtInstrumentConvertibleConversionPrice1_2" xlink:title="label: DebtInstrumentConvertibleConversionPrice1 to label_DebtInstrumentConvertibleConversionPrice1" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentNameDomain" xml:lang="en-US" id="label_DebtInstrumentNameDomain">Debt Instrument, Name [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNameDomain" xlink:to="label_DebtInstrumentNameDomain" xlink:title="label: DebtInstrumentNameDomain to label_DebtInstrumentNameDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="DebtInstrumentInterestRateStatedPercentage" xlink:title="DebtInstrumentInterestRateStatedPercentage" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US" id="label_DebtInstrumentInterestRateStatedPercentage">Fixed annual interest rate (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestRateStatedPercentage" xlink:to="label_DebtInstrumentInterestRateStatedPercentage" xlink:title="label: DebtInstrumentInterestRateStatedPercentage to label_DebtInstrumentInterestRateStatedPercentage" use="optional" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestRateStatedPercentage" xlink:to="label_DebtInstrumentInterestRateStatedPercentage_2" xlink:title="label: DebtInstrumentInterestRateStatedPercentage to label_DebtInstrumentInterestRateStatedPercentage" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_DeferredRevenue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredRevenue" xml:lang="en-US" id="label_DeferredRevenue_2">Deferred Revenue</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredRevenueCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DeferredRevenueCurrent" xml:lang="en-US" id="label_DeferredRevenueCurrent">Current Portion of Deferred Revenue</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredRevenueCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredRevenueCurrent" xml:lang="en-US" id="label_DeferredRevenueCurrent_2">Deferred Revenue, Current</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsGrossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DeferredTaxAssetsGrossAbstract" xml:lang="en-US" id="label_DeferredTaxAssetsGrossAbstract">Gross Deferred Tax Assets</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredRevenueNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DeferredRevenueNoncurrent" xml:lang="en-US" id="label_DeferredRevenueNoncurrent">Deferred Revenue</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxAssetsValuationAllowance_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxAssetsValuationAllowance" xml:lang="en-US" id="label_DeferredTaxAssetsValuationAllowance_2">Deferred Tax Assets, Valuation Allowance</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DeferredTaxLiabilities" xml:lang="en-US" id="label_DeferredTaxLiabilities">Net Deferred Tax Liability related to IPR&amp;D</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiabilities" xlink:to="label_DeferredTaxLiabilities" xlink:title="label: DeferredTaxLiabilities to label_DeferredTaxLiabilities" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilities_2" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:title="label_DeferredTaxLiabilities" xml:lang="en-US" id="label_DeferredTaxLiabilities_2">Net Deferred Tax Asset (Liability)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilities_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxLiabilities" xml:lang="en-US" id="label_DeferredTaxLiabilities_3">Deferred Tax Liabilities, Net</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DeferredTaxLiabilitiesAbstract" xlink:label="DeferredTaxLiabilitiesAbstract" xlink:title="DeferredTaxLiabilitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DeferredTaxLiabilitiesAbstract" xml:lang="en-US" id="label_DeferredTaxLiabilitiesAbstract">Gross Deferred Tax Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiabilitiesAbstract" xlink:to="label_DeferredTaxLiabilitiesAbstract" xlink:title="label: DeferredTaxLiabilitiesAbstract to label_DeferredTaxLiabilitiesAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DeferredTaxLiabilitiesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredTaxLiabilitiesAbstract" xml:lang="en-US" id="label_DeferredTaxLiabilitiesAbstract_2">Deferred Tax Liabilities, Gross [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiabilitiesAbstract" xlink:to="label_DeferredTaxLiabilitiesAbstract_2" xlink:title="label: DeferredTaxLiabilitiesAbstract to label_DeferredTaxLiabilitiesAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:label="DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:title="DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" />
    <link:label xlink:type="resource" xlink:label="label_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xml:lang="en-US" id="label_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent">Maximum contribution by participants (as a percent)</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:to="label_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_2" xlink:title="label: DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent to label_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:label="DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:title="DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" />
    <link:label xlink:type="resource" xlink:label="label_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xml:lang="en-US" id="label_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch">Employer match (as a percent)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:label="DefinedContributionPlanEmployerMatchingContributionPercent" xlink:title="DefinedContributionPlanEmployerMatchingContributionPercent" />
    <link:label xlink:type="resource" xlink:label="label_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DefinedContributionPlanEmployerMatchingContributionPercent" xml:lang="en-US" id="label_DefinedContributionPlanEmployerMatchingContributionPercent">Maximum percentage of employees' gross pay subject to employer match</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DefinedContributionPlanEmployerMatchingContributionPercent" xlink:to="label_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:title="label: DefinedContributionPlanEmployerMatchingContributionPercent to label_DefinedContributionPlanEmployerMatchingContributionPercent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DefinedContributionPlanEmployerMatchingContributionPercent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DefinedContributionPlanEmployerMatchingContributionPercent" xml:lang="en-US" id="label_DefinedContributionPlanEmployerMatchingContributionPercent_2">Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DefinedContributionPlanEmployerMatchingContributionPercent" xlink:to="label_DefinedContributionPlanEmployerMatchingContributionPercent_2" xlink:title="label: DefinedContributionPlanEmployerMatchingContributionPercent to label_DefinedContributionPlanEmployerMatchingContributionPercent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="DefinedContributionPlanCostRecognized" xlink:title="DefinedContributionPlanCostRecognized" />
    <link:label xlink:type="resource" xlink:label="label_DefinedContributionPlanCostRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DefinedContributionPlanCostRecognized" xml:lang="en-US" id="label_DefinedContributionPlanCostRecognized">Benefit expense for the 401(k) Plan</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DefinedContributionPlanCostRecognized_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DefinedContributionPlanCostRecognized" xml:lang="en-US" id="label_DefinedContributionPlanCostRecognized_2">Defined Contribution Plan, Cost Recognized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DefinedContributionPlanCostRecognized" xlink:to="label_DefinedContributionPlanCostRecognized_2" xlink:title="label: DefinedContributionPlanCostRecognized to label_DefinedContributionPlanCostRecognized" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization" />
    <link:label xlink:type="resource" xlink:label="label_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DepreciationDepletionAndAmortization" xml:lang="en-US" id="label_DepreciationDepletionAndAmortization">Depreciation and Amortization</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DepreciationDepletionAndAmortization_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_DepreciationDepletionAndAmortization" xml:lang="en-US" id="label_DepreciationDepletionAndAmortization_2">Depreciation and amortization expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationDepletionAndAmortization" xlink:to="label_DepreciationDepletionAndAmortization_2" xlink:title="label: DepreciationDepletionAndAmortization to label_DepreciationDepletionAndAmortization" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_DepreciationDepletionAndAmortization_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationDepletionAndAmortization" xml:lang="en-US" id="label_DepreciationDepletionAndAmortization_3">Depreciation, Depletion and Amortization</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:title="DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xml:lang="en-US" id="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock">Stock-Based Compensation</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:title="DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="EarningsPerShareBasicAndDiluted" xlink:title="EarningsPerShareBasicAndDiluted" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="EarningsPerShareTextBlock" xlink:title="EarningsPerShareTextBlock" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EarningsPerShareTextBlock" xlink:to="label_EarningsPerShareTextBlock_2" xlink:title="label: EarningsPerShareTextBlock to label_EarningsPerShareTextBlock" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_EarningsPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EarningsPerShareAbstract" xml:lang="en-US" id="label_EarningsPerShareAbstract">Net Loss Per Share</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations" xlink:label="EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations" xlink:title="EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations" />
    <link:label xlink:type="resource" xlink:label="label_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations" xml:lang="en-US" id="label_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations">Effect of Exchange Rate Changes on Cash and Cash Equivalents</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:title="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" />
    <link:label xlink:type="resource" xlink:label="label_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xml:lang="en-US" id="label_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate">U.S. Statutory rate (as a percent)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xml:lang="en-US" id="label_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_2">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="EmployeeRelatedLiabilitiesCurrent" xlink:title="EmployeeRelatedLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeRelatedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EmployeeRelatedLiabilitiesCurrent" xml:lang="en-US" id="label_EmployeeRelatedLiabilitiesCurrent">Accrued Payroll and Employee Benefits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeRelatedLiabilitiesCurrent" xlink:to="label_EmployeeRelatedLiabilitiesCurrent" xlink:title="label: EmployeeRelatedLiabilitiesCurrent to label_EmployeeRelatedLiabilitiesCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeRelatedLiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EmployeeRelatedLiabilitiesCurrent" xml:lang="en-US" id="label_EmployeeRelatedLiabilitiesCurrent_2">Employee-related Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeRelatedLiabilitiesCurrent" xlink:to="label_EmployeeRelatedLiabilitiesCurrent_2" xlink:title="label: EmployeeRelatedLiabilitiesCurrent to label_EmployeeRelatedLiabilitiesCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:label="EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:title="EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xml:lang="en-US" id="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems">Valuation and Expenses Information</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:to="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:title="label: EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems to label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xml:lang="en-US" id="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_2">Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:to="label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_2" xlink:title="label: EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems to label_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeStockMember" xlink:label="EmployeeStockMember" xlink:title="EmployeeStockMember" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EmployeeStockMember" xml:lang="en-US" id="label_EmployeeStockMember">2004 ESPP Plan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeStockMember" xlink:to="label_EmployeeStockMember" xlink:title="label: EmployeeStockMember to label_EmployeeStockMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EmployeeStockMember" xml:lang="en-US" id="label_EmployeeStockMember_2">Employee Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeStockMember" xlink:to="label_EmployeeStockMember_2" xlink:title="label: EmployeeStockMember to label_EmployeeStockMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US" id="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">Weighted average period over which compensation cost is expected to be recognized as expense</link:label>
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    <link:label xlink:type="resource" xlink:label="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US" id="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" />
    <link:label xlink:type="resource" xlink:label="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US" id="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions">Total compensation cost not yet recognized (in dollars)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US" id="label_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_2">Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:label xlink:type="resource" xlink:label="label_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EquityComponentDomain" xml:lang="en-US" id="label_EquityComponentDomain">Equity Component [Domain]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="EstimateOfFairValueFairValueDisclosureMember" xlink:title="EstimateOfFairValueFairValueDisclosureMember" />
    <link:label xlink:type="resource" xlink:label="label_EstimateOfFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US" id="label_EstimateOfFairValueFairValueDisclosureMember">Fair value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EstimateOfFairValueFairValueDisclosureMember" xlink:to="label_EstimateOfFairValueFairValueDisclosureMember" xlink:title="label: EstimateOfFairValueFairValueDisclosureMember to label_EstimateOfFairValueFairValueDisclosureMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_EstimateOfFairValueFairValueDisclosureMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US" id="label_EstimateOfFairValueFairValueDisclosureMember_2">Estimate of Fair Value Measurement [Member]</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementsRecurringMember" xlink:to="label_FairValueMeasurementsRecurringMember_2" xlink:title="label: FairValueMeasurementsRecurringMember to label_FairValueMeasurementsRecurringMember" use="optional" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
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    <link:label xlink:type="resource" xlink:label="label_FairValueDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueDisclosuresAbstract" xml:lang="en-US" id="label_FairValueDisclosuresAbstract">Fair Value Measurements</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="FairValueMeasurementsFairValueHierarchyDomain" xlink:title="FairValueMeasurementsFairValueHierarchyDomain" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:label="FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:title="FairValueAssetsMeasuredOnRecurringBasisTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xml:lang="en-US" id="label_FairValueAssetsMeasuredOnRecurringBasisTextBlock">Schedule of financial assets subject to fair value measurements</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsMeasuredOnRecurringBasisTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xml:lang="en-US" id="label_FairValueAssetsMeasuredOnRecurringBasisTextBlock_2">Fair Value, Assets Measured on Recurring Basis [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="FairValueDisclosuresTextBlock" xlink:title="FairValueDisclosuresTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_FairValueDisclosuresTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueDisclosuresTextBlock" xml:lang="en-US" id="label_FairValueDisclosuresTextBlock">Fair Value Measurements</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FairValueDisclosuresTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueDisclosuresTextBlock" xml:lang="en-US" id="label_FairValueDisclosuresTextBlock_2">Fair Value Disclosures [Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueInputsLevel3Member" xml:lang="en-US" id="label_FairValueInputsLevel3Member">Level 3</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="FairValueInputsLevel1Member" xlink:title="FairValueInputsLevel1Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueInputsLevel1Member" xml:lang="en-US" id="label_FairValueInputsLevel1Member">Level 1</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel1Member" xlink:to="label_FairValueInputsLevel1Member" xlink:title="label: FairValueInputsLevel1Member to label_FairValueInputsLevel1Member" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel1Member_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueInputsLevel1Member" xml:lang="en-US" id="label_FairValueInputsLevel1Member_2">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel1Member" xlink:to="label_FairValueInputsLevel1Member_2" xlink:title="label: FairValueInputsLevel1Member to label_FairValueInputsLevel1Member" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="FairValueInputsLevel2Member" xlink:title="FairValueInputsLevel2Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueInputsLevel2Member" xml:lang="en-US" id="label_FairValueInputsLevel2Member">Level 2</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel2Member_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueInputsLevel2Member" xml:lang="en-US" id="label_FairValueInputsLevel2Member_2">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel2Member" xlink:to="label_FairValueInputsLevel2Member_2" xlink:title="label: FairValueInputsLevel2Member to label_FairValueInputsLevel2Member" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:title="FederalIncomeTaxExpenseBenefitContinuingOperations" />
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    <link:label xlink:type="resource" xlink:label="label_FederalIncomeTaxExpenseBenefitContinuingOperations_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FederalIncomeTaxExpenseBenefitContinuingOperations" xml:lang="en-US" id="label_FederalIncomeTaxExpenseBenefitContinuingOperations_2">Federal Income Tax Expense (Benefit), Continuing Operations</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="FiniteLivedIntangibleAssetUsefulLife" xlink:title="FiniteLivedIntangibleAssetUsefulLife" />
    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetUsefulLife" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FiniteLivedIntangibleAssetUsefulLife" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetUsefulLife">Estimated Life</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetUsefulLife_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FiniteLivedIntangibleAssetUsefulLife" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetUsefulLife_2">Finite-Lived Intangible Asset, Useful Life</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetsGross" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FiniteLivedIntangibleAssetsGross" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetsGross">Cost</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetsGross_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FiniteLivedIntangibleAssetsGross" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetsGross_2">Finite-Lived Intangible Assets, Gross</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive">2017</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_2">Finite-Lived Intangible Assets, Amortization Expense, Year Five</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" />
    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree">2015</link:label>
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    <link:label xlink:type="resource" xlink:label="label_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xml:lang="en-US" id="label_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract">Estimated future amortization expense of intangible assets</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" xlink:label="IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" xlink:title="IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="LongTermDebtByMaturityAbstract" xlink:title="LongTermDebtByMaturityAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="label_LongTermDebtByMaturityAbstract_3" xlink:title="label: LongTermDebtByMaturityAbstract to label_LongTermDebtByMaturityAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" />
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    <link:label xlink:type="resource" xlink:label="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xml:lang="en-US" id="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_2">Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:title="MajorTypesOfDebtAndEquitySecuritiesDomain" />
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    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears">2016</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInFourYears to label_OperatingLeasesFutureMinimumPaymentsDueInFourYears" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears_2">Operating Leases, Future Minimum Payments, Due in Four Years</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInFourYears_2" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInFourYears to label_OperatingLeasesFutureMinimumPaymentsDueInFourYears" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears">2017</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInFiveYears to label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_2">Annual rental obligations in the fifth year</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_2" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInFiveYears to label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_3">Operating Leases, Future Minimum Payments, Due in Five Years</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_3" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInFiveYears to label_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears">2015</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInThreeYears to label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_2">Operating Leases, Future Minimum Payments, Due in Three Years</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_2" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInThreeYears to label_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="OperatingLeasesRentExpenseNet" xlink:title="OperatingLeasesRentExpenseNet" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesRentExpenseNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesRentExpenseNet" xml:lang="en-US" id="label_OperatingLeasesRentExpenseNet">Total rent and CAM expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesRentExpenseNet" xlink:to="label_OperatingLeasesRentExpenseNet" xlink:title="label: OperatingLeasesRentExpenseNet to label_OperatingLeasesRentExpenseNet" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesRentExpenseNet_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesRentExpenseNet" xml:lang="en-US" id="label_OperatingLeasesRentExpenseNet_2">Operating Leases, Rent Expense, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesRentExpenseNet" xlink:to="label_OperatingLeasesRentExpenseNet_2" xlink:title="label: OperatingLeasesRentExpenseNet to label_OperatingLeasesRentExpenseNet" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:title="OperatingLeasesFutureMinimumPaymentsDueCurrent" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueCurrent">2013</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueCurrent to label_OperatingLeasesFutureMinimumPaymentsDueCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueCurrent_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueCurrent_2">Annual rental obligations in the first year</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueCurrent_2" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueCurrent to label_OperatingLeasesFutureMinimumPaymentsDueCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueCurrent_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueCurrent_3">Operating Leases, Future Minimum Payments Due, Next Twelve Months</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueCurrent_3" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueCurrent to label_OperatingLeasesFutureMinimumPaymentsDueCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:label xlink:type="resource" xlink:label="label_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_OperatingIncomeLoss" xml:lang="en-US" id="label_OperatingIncomeLoss">Operating Loss</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingIncomeLoss" xlink:to="label_OperatingIncomeLoss" xlink:title="label: OperatingIncomeLoss to label_OperatingIncomeLoss" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingIncomeLoss_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingIncomeLoss" xml:lang="en-US" id="label_OperatingIncomeLoss_2">Operating Income (Loss)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingIncomeLoss" xlink:to="label_OperatingIncomeLoss_2" xlink:title="label: OperatingIncomeLoss to label_OperatingIncomeLoss" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:title="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears">2014</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInTwoYears to label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_2">Operating Leases, Future Minimum Payments, Due in Two Years</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_2" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDueInTwoYears to label_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasedAssetsLineItems" xlink:label="OperatingLeasedAssetsLineItems" xlink:title="OperatingLeasedAssetsLineItems" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasedAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLeasedAssetsLineItems" xml:lang="en-US" id="label_OperatingLeasedAssetsLineItems">Lease</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasedAssetsLineItems" xlink:to="label_OperatingLeasedAssetsLineItems" xlink:title="label: OperatingLeasedAssetsLineItems to label_OperatingLeasedAssetsLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasedAssetsLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasedAssetsLineItems" xml:lang="en-US" id="label_OperatingLeasedAssetsLineItems_2">Operating Leased Assets [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasedAssetsLineItems" xlink:to="label_OperatingLeasedAssetsLineItems_2" xlink:title="label: OperatingLeasedAssetsLineItems to label_OperatingLeasedAssetsLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="OperatingLeasesFutureMinimumPaymentsDue" xlink:title="OperatingLeasesFutureMinimumPaymentsDue" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDue">Total minimum lease payments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDue" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDue to label_OperatingLeasesFutureMinimumPaymentsDue" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLeasesFutureMinimumPaymentsDue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US" id="label_OperatingLeasesFutureMinimumPaymentsDue_2">Operating Leases, Future Minimum Payments Due</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLeasesFutureMinimumPaymentsDue" xlink:to="label_OperatingLeasesFutureMinimumPaymentsDue_2" xlink:title="label: OperatingLeasesFutureMinimumPaymentsDue to label_OperatingLeasesFutureMinimumPaymentsDue" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="OperatingLossCarryforwards" xlink:title="OperatingLossCarryforwards" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwards" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OperatingLossCarryforwards" xml:lang="en-US" id="label_OperatingLossCarryforwards">Net operating loss carryforwards</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwards" xlink:to="label_OperatingLossCarryforwards" xlink:title="label: OperatingLossCarryforwards to label_OperatingLossCarryforwards" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OperatingLossCarryforwards_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OperatingLossCarryforwards" xml:lang="en-US" id="label_OperatingLossCarryforwards_2">Operating Loss Carryforwards</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OperatingLossCarryforwards" xlink:to="label_OperatingLossCarryforwards_2" xlink:title="label: OperatingLossCarryforwards to label_OperatingLossCarryforwards" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xml:lang="en-US" id="label_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract">Basis of Presentation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="label_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="label: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to label_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="OtherComprehensiveIncomeLossNetOfTax" xlink:title="OtherComprehensiveIncomeLossNetOfTax" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_OtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US" id="label_OtherComprehensiveIncomeLossNetOfTax">Net current-period other comprehensive income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherComprehensiveIncomeLossNetOfTax" xlink:to="label_OtherComprehensiveIncomeLossNetOfTax" xlink:title="label: OtherComprehensiveIncomeLossNetOfTax to label_OtherComprehensiveIncomeLossNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeLossNetOfTax_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US" id="label_OtherComprehensiveIncomeLossNetOfTax_2">Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherComprehensiveIncomeLossNetOfTax" xlink:to="label_OtherComprehensiveIncomeLossNetOfTax_2" xlink:title="label: OtherComprehensiveIncomeLossNetOfTax to label_OtherComprehensiveIncomeLossNetOfTax" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:label="OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:title="OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xml:lang="en-US" id="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax">Other comprehensive income (loss) before reclassifications</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:to="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:title="label: OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax to label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xml:lang="en-US" id="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_2">Other Comprehensive Income (Loss), before Reclassifications, Net of Tax</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:to="label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_2" xlink:title="label: OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax to label_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="OtherAssetsNoncurrent" xlink:title="OtherAssetsNoncurrent" />
    <link:label xlink:type="resource" xlink:label="label_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherAssetsNoncurrent" xml:lang="en-US" id="label_OtherAssetsNoncurrent">Other Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAssetsNoncurrent" xlink:to="label_OtherAssetsNoncurrent" xlink:title="label: OtherAssetsNoncurrent to label_OtherAssetsNoncurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherAssetsNoncurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherAssetsNoncurrent" xml:lang="en-US" id="label_OtherAssetsNoncurrent_2">Other Assets, Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAssetsNoncurrent" xlink:to="label_OtherAssetsNoncurrent_2" xlink:title="label: OtherAssetsNoncurrent to label_OtherAssetsNoncurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilitiesDisclosureAbstract" xlink:label="OtherLiabilitiesDisclosureAbstract" xlink:title="OtherLiabilitiesDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherLiabilitiesDisclosureAbstract" xml:lang="en-US" id="label_OtherLiabilitiesDisclosureAbstract">Other Long-Term Liabilities</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherSundryLiabilities" xlink:label="OtherSundryLiabilities" xlink:title="OtherSundryLiabilities" />
    <link:label xlink:type="resource" xlink:label="label_OtherSundryLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherSundryLiabilities" xml:lang="en-US" id="label_OtherSundryLiabilities">Other</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherSundryLiabilities" xlink:to="label_OtherSundryLiabilities" xlink:title="label: OtherSundryLiabilities to label_OtherSundryLiabilities" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherSundryLiabilities_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherSundryLiabilities" xml:lang="en-US" id="label_OtherSundryLiabilities_2">Other Sundry Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherSundryLiabilities" xlink:to="label_OtherSundryLiabilities_2" xlink:title="label: OtherSundryLiabilities to label_OtherSundryLiabilities" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:title="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:to="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:title="label: OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax to label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xml:lang="en-US" id="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_2">Unrealized Gains (Losses) on Marketable Securities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:to="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_2" xlink:title="label: OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax to label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xml:lang="en-US" id="label_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_3">Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="OtherNonoperatingIncome" xlink:title="OtherNonoperatingIncome" />
    <link:label xlink:type="resource" xlink:label="label_OtherNonoperatingIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherNonoperatingIncome" xml:lang="en-US" id="label_OtherNonoperatingIncome">Other income related to IRS Qualifying Therapeutic Discovery Grants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherNonoperatingIncome" xlink:to="label_OtherNonoperatingIncome" xlink:title="label: OtherNonoperatingIncome to label_OtherNonoperatingIncome" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherNonoperatingIncome_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherNonoperatingIncome" xml:lang="en-US" id="label_OtherNonoperatingIncome_2">Other Nonoperating Income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherNonoperatingIncome" xlink:to="label_OtherNonoperatingIncome_2" xlink:title="label: OtherNonoperatingIncome to label_OtherNonoperatingIncome" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="OtherLiabilitiesNoncurrent" xlink:title="OtherLiabilitiesNoncurrent" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherLiabilitiesNoncurrent" xml:lang="en-US" id="label_OtherLiabilitiesNoncurrent">Other Long-Term Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesNoncurrent" xlink:to="label_OtherLiabilitiesNoncurrent" xlink:title="label: OtherLiabilitiesNoncurrent to label_OtherLiabilitiesNoncurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesNoncurrent_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_OtherLiabilitiesNoncurrent" xml:lang="en-US" id="label_OtherLiabilitiesNoncurrent_2">Long-Term Portion</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesNoncurrent" xlink:to="label_OtherLiabilitiesNoncurrent_2" xlink:title="label: OtherLiabilitiesNoncurrent to label_OtherLiabilitiesNoncurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesNoncurrent_3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_OtherLiabilitiesNoncurrent" xml:lang="en-US" id="label_OtherLiabilitiesNoncurrent_3">Long-Term Portion</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesNoncurrent" xlink:to="label_OtherLiabilitiesNoncurrent_3" xlink:title="label: OtherLiabilitiesNoncurrent to label_OtherLiabilitiesNoncurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesNoncurrent_4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherLiabilitiesNoncurrent" xml:lang="en-US" id="label_OtherLiabilitiesNoncurrent_4">Other Liabilities, Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesNoncurrent" xlink:to="label_OtherLiabilitiesNoncurrent_4" xlink:title="label: OtherLiabilitiesNoncurrent to label_OtherLiabilitiesNoncurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="OtherLiabilitiesCurrent" xlink:title="OtherLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherLiabilitiesCurrent" xml:lang="en-US" id="label_OtherLiabilitiesCurrent">Current Portion of Long-Term Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesCurrent" xlink:to="label_OtherLiabilitiesCurrent" xlink:title="label: OtherLiabilitiesCurrent to label_OtherLiabilitiesCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_OtherLiabilitiesCurrent" xml:lang="en-US" id="label_OtherLiabilitiesCurrent_2">Less Current Portion</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesCurrent" xlink:to="label_OtherLiabilitiesCurrent_2" xlink:title="label: OtherLiabilitiesCurrent to label_OtherLiabilitiesCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesCurrent_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherLiabilitiesCurrent" xml:lang="en-US" id="label_OtherLiabilitiesCurrent_3">Other Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesCurrent" xlink:to="label_OtherLiabilitiesCurrent_3" xlink:title="label: OtherLiabilitiesCurrent to label_OtherLiabilitiesCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilitiesDisclosureTextBlock" xlink:label="OtherLiabilitiesDisclosureTextBlock" xlink:title="OtherLiabilitiesDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherLiabilitiesDisclosureTextBlock" xml:lang="en-US" id="label_OtherLiabilitiesDisclosureTextBlock">Other Long-Term Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesDisclosureTextBlock" xlink:to="label_OtherLiabilitiesDisclosureTextBlock" xlink:title="label: OtherLiabilitiesDisclosureTextBlock to label_OtherLiabilitiesDisclosureTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilitiesDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherLiabilitiesDisclosureTextBlock" xml:lang="en-US" id="label_OtherLiabilitiesDisclosureTextBlock_2">Other Liabilities Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesDisclosureTextBlock" xlink:to="label_OtherLiabilitiesDisclosureTextBlock_2" xlink:title="label: OtherLiabilitiesDisclosureTextBlock to label_OtherLiabilitiesDisclosureTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="OtherLiabilities" xlink:title="OtherLiabilities" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_OtherLiabilities" xml:lang="en-US" id="label_OtherLiabilities">Total</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilities" xlink:to="label_OtherLiabilities" xlink:title="label: OtherLiabilities to label_OtherLiabilities" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherLiabilities_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherLiabilities" xml:lang="en-US" id="label_OtherLiabilities_2">Other Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilities" xlink:to="label_OtherLiabilities_2" xlink:title="label: OtherLiabilities to label_OtherLiabilities" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherNoncashIncomeTaxExpense" xlink:label="OtherNoncashIncomeTaxExpense" xlink:title="OtherNoncashIncomeTaxExpense" />
    <link:label xlink:type="resource" xlink:label="label_OtherNoncashIncomeTaxExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherNoncashIncomeTaxExpense" xml:lang="en-US" id="label_OtherNoncashIncomeTaxExpense">Non-Cash Tax Benefit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherNoncashIncomeTaxExpense" xlink:to="label_OtherNoncashIncomeTaxExpense" xlink:title="label: OtherNoncashIncomeTaxExpense to label_OtherNoncashIncomeTaxExpense" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherNoncashIncomeTaxExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherNoncashIncomeTaxExpense" xml:lang="en-US" id="label_OtherNoncashIncomeTaxExpense_2">Other Noncash Income Tax Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherNoncashIncomeTaxExpense" xlink:to="label_OtherNoncashIncomeTaxExpense_2" xlink:title="label: OtherNoncashIncomeTaxExpense to label_OtherNoncashIncomeTaxExpense" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="OtherAccruedLiabilitiesCurrent" xlink:title="OtherAccruedLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_OtherAccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherAccruedLiabilitiesCurrent" xml:lang="en-US" id="label_OtherAccruedLiabilitiesCurrent">Other Accrued Expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAccruedLiabilitiesCurrent" xlink:to="label_OtherAccruedLiabilitiesCurrent" xlink:title="label: OtherAccruedLiabilitiesCurrent to label_OtherAccruedLiabilitiesCurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_OtherAccruedLiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherAccruedLiabilitiesCurrent" xml:lang="en-US" id="label_OtherAccruedLiabilitiesCurrent_2">Other Accrued Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAccruedLiabilitiesCurrent" xlink:to="label_OtherAccruedLiabilitiesCurrent_2" xlink:title="label: OtherAccruedLiabilitiesCurrent to label_OtherAccruedLiabilitiesCurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:label="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:title="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xml:lang="en-US" id="label_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract">Other Comprehensive (Loss) Income:</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:title="OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain" xlink:title="ProductsAndServicesDomain" />
    <link:label xlink:type="resource" xlink:label="label_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProductsAndServicesDomain" xml:lang="en-US" id="label_ProductsAndServicesDomain">Products and Services [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductsAndServicesDomain" xlink:to="label_ProductsAndServicesDomain" xlink:title="label: ProductsAndServicesDomain to label_ProductsAndServicesDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="PayablesAndAccrualsAbstract" xlink:title="PayablesAndAccrualsAbstract" />
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    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockSharesIssued" xml:lang="en-US" id="label_PreferredStockSharesIssued">Convertible Preferred Stock, Shares Issued</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockSharesAuthorized" xml:lang="en-US" id="label_PreferredStockSharesAuthorized">Convertible Preferred Stock, Shares Authorized</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockSharesOutstanding" xml:lang="en-US" id="label_PreferredStockSharesOutstanding">Convertible Preferred Stock, Shares Outstanding</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ProceedsFromStockPlans_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromStockPlans" xml:lang="en-US" id="label_ProceedsFromStockPlans_2">Proceeds from Stock Plans</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromStockPlans" xlink:to="label_ProceedsFromStockPlans_2" xlink:title="label: ProceedsFromStockPlans to label_ProceedsFromStockPlans" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="ProductOrServiceAxis" xlink:title="ProductOrServiceAxis" />
    <link:label xlink:type="resource" xlink:label="label_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProductOrServiceAxis" xml:lang="en-US" id="label_ProductOrServiceAxis">Products and Services [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductOrServiceAxis" xlink:to="label_ProductOrServiceAxis" xlink:title="label: ProductOrServiceAxis to label_ProductOrServiceAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="PropertyPlantAndEquipmentUsefulLife" xlink:title="PropertyPlantAndEquipmentUsefulLife" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentUsefulLife" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentUsefulLife" xml:lang="en-US" id="label_PropertyPlantAndEquipmentUsefulLife">Estimated useful lives</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentUsefulLife" xlink:to="label_PropertyPlantAndEquipmentUsefulLife" xlink:title="label: PropertyPlantAndEquipmentUsefulLife to label_PropertyPlantAndEquipmentUsefulLife" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentUsefulLife_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentUsefulLife" xml:lang="en-US" id="label_PropertyPlantAndEquipmentUsefulLife_2">Property, Plant and Equipment, Useful Life</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentUsefulLife" xlink:to="label_PropertyPlantAndEquipmentUsefulLife_2" xlink:title="label: PropertyPlantAndEquipmentUsefulLife to label_PropertyPlantAndEquipmentUsefulLife" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="PropertyPlantAndEquipmentGross" xlink:title="PropertyPlantAndEquipmentGross" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentGross" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentGross" xml:lang="en-US" id="label_PropertyPlantAndEquipmentGross">Total Property and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentGross" xlink:to="label_PropertyPlantAndEquipmentGross" xlink:title="label: PropertyPlantAndEquipmentGross to label_PropertyPlantAndEquipmentGross" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentGross_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentGross" xml:lang="en-US" id="label_PropertyPlantAndEquipmentGross_2">Property, Plant and Equipment, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentGross" xlink:to="label_PropertyPlantAndEquipmentGross_2" xlink:title="label: PropertyPlantAndEquipmentGross to label_PropertyPlantAndEquipmentGross" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="PropertyPlantAndEquipmentPolicyTextBlock" xlink:title="PropertyPlantAndEquipmentPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentPolicyTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentPolicyTextBlock">Property and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="label_PropertyPlantAndEquipmentPolicyTextBlock" xlink:title="label: PropertyPlantAndEquipmentPolicyTextBlock to label_PropertyPlantAndEquipmentPolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentPolicyTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentPolicyTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentPolicyTextBlock_2">Property, Plant and Equipment, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="label_PropertyPlantAndEquipmentPolicyTextBlock_2" xlink:title="label: PropertyPlantAndEquipmentPolicyTextBlock to label_PropertyPlantAndEquipmentPolicyTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet">Property and Equipment, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet_2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet_2">Property and Equipment, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet_2" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet_3">Property, Plant and Equipment, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet_3" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentAbstract" xml:lang="en-US" id="label_PropertyPlantAndEquipmentAbstract">PROPERTY AND EQUIPMENT, NET</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="label_PropertyPlantAndEquipmentAbstract" xlink:title="label: PropertyPlantAndEquipmentAbstract to label_PropertyPlantAndEquipmentAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="PropertyPlantAndEquipmentTextBlock" xlink:title="PropertyPlantAndEquipmentTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentTextBlock">Schedule of property and equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentTextBlock" xlink:to="label_PropertyPlantAndEquipmentTextBlock" xlink:title="label: PropertyPlantAndEquipmentTextBlock to label_PropertyPlantAndEquipmentTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentTextBlock_2">Property, Plant and Equipment [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentTextBlock" xlink:to="label_PropertyPlantAndEquipmentTextBlock_2" xlink:title="label: PropertyPlantAndEquipmentTextBlock to label_PropertyPlantAndEquipmentTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentTypeDomain" xml:lang="en-US" id="label_PropertyPlantAndEquipmentTypeDomain">Property, Plant and Equipment, Type [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="label_PropertyPlantAndEquipmentTypeDomain" xlink:title="label: PropertyPlantAndEquipmentTypeDomain to label_PropertyPlantAndEquipmentTypeDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentByTypeAxis" xml:lang="en-US" id="label_PropertyPlantAndEquipmentByTypeAxis">Property, Plant and Equipment, Type [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="label_PropertyPlantAndEquipmentByTypeAxis" xlink:title="label: PropertyPlantAndEquipmentByTypeAxis to label_PropertyPlantAndEquipmentByTypeAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="PropertyPlantAndEquipmentDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentDisclosureTextBlock">PROPERTY AND EQUIPMENT, NET</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="label_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="label: PropertyPlantAndEquipmentDisclosureTextBlock to label_PropertyPlantAndEquipmentDisclosureTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentDisclosureTextBlock_2">Property, Plant and Equipment Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="label_PropertyPlantAndEquipmentDisclosureTextBlock_2" xlink:title="label: PropertyPlantAndEquipmentDisclosureTextBlock to label_PropertyPlantAndEquipmentDisclosureTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentLineItems" xml:lang="en-US" id="label_PropertyPlantAndEquipmentLineItems">Property and equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="label_PropertyPlantAndEquipmentLineItems" xlink:title="label: PropertyPlantAndEquipmentLineItems to label_PropertyPlantAndEquipmentLineItems" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentLineItems" xml:lang="en-US" id="label_PropertyPlantAndEquipmentLineItems_2">Property, Plant and Equipment [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="label_PropertyPlantAndEquipmentLineItems_2" xlink:title="label: PropertyPlantAndEquipmentLineItems to label_PropertyPlantAndEquipmentLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="QuarterlyFinancialInformationTextBlock" xlink:title="QuarterlyFinancialInformationTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_QuarterlyFinancialInformationTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_QuarterlyFinancialInformationTextBlock" xml:lang="en-US" id="label_QuarterlyFinancialInformationTextBlock">SELECTED QUARTERLY FINANCIAL DATA (Unaudited)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="QuarterlyFinancialInformationTextBlock" xlink:to="label_QuarterlyFinancialInformationTextBlock" xlink:title="label: QuarterlyFinancialInformationTextBlock to label_QuarterlyFinancialInformationTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_QuarterlyFinancialInformationTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_QuarterlyFinancialInformationTextBlock" xml:lang="en-US" id="label_QuarterlyFinancialInformationTextBlock_2">Quarterly Financial Information [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="QuarterlyFinancialInformationTextBlock" xlink:to="label_QuarterlyFinancialInformationTextBlock_2" xlink:title="label: QuarterlyFinancialInformationTextBlock to label_QuarterlyFinancialInformationTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="QuarterlyFinancialInformationDisclosureAbstract" xlink:title="QuarterlyFinancialInformationDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_QuarterlyFinancialInformationDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_QuarterlyFinancialInformationDisclosureAbstract" xml:lang="en-US" id="label_QuarterlyFinancialInformationDisclosureAbstract">SELECTED QUARTERLY FINANCIAL DATA (Unaudited)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="QuarterlyFinancialInformationDisclosureAbstract" xlink:to="label_QuarterlyFinancialInformationDisclosureAbstract" xlink:title="label: QuarterlyFinancialInformationDisclosureAbstract to label_QuarterlyFinancialInformationDisclosureAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="RangeAxis" xlink:title="RangeAxis" />
    <link:label xlink:type="resource" xlink:label="label_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RangeAxis" xml:lang="en-US" id="label_RangeAxis">Range [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeAxis" xlink:to="label_RangeAxis" xlink:title="label: RangeAxis to label_RangeAxis" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="RangeMember" xlink:title="RangeMember" />
    <link:label xlink:type="resource" xlink:label="label_RangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RangeMember" xml:lang="en-US" id="label_RangeMember">Range [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeMember" xlink:to="label_RangeMember" xlink:title="label: RangeMember to label_RangeMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:title="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" />
    <link:label xlink:type="resource" xlink:label="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xml:lang="en-US" id="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax">Amounts reclassified from other comprehensive income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:to="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:title="label: ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax to label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xml:lang="en-US" id="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_2">Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:to="label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_2" xlink:title="label: ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax to label_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt" xlink:label="RepaymentsOfSecuredDebt" xlink:title="RepaymentsOfSecuredDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfSecuredDebt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RepaymentsOfSecuredDebt" xml:lang="en-US" id="label_RepaymentsOfSecuredDebt">Payments of Term Loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfSecuredDebt" xlink:to="label_RepaymentsOfSecuredDebt" xlink:title="label: RepaymentsOfSecuredDebt to label_RepaymentsOfSecuredDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfSecuredDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfSecuredDebt" xml:lang="en-US" id="label_RepaymentsOfSecuredDebt_2">Repayments of Secured Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfSecuredDebt" xlink:to="label_RepaymentsOfSecuredDebt_2" xlink:title="label: RepaymentsOfSecuredDebt to label_RepaymentsOfSecuredDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfSubordinatedDebt" xlink:label="RepaymentsOfSubordinatedDebt" xlink:title="RepaymentsOfSubordinatedDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfSubordinatedDebt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RepaymentsOfSubordinatedDebt" xml:lang="en-US" id="label_RepaymentsOfSubordinatedDebt">Related Party Loan Due to Medarex</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfSubordinatedDebt" xlink:to="label_RepaymentsOfSubordinatedDebt" xlink:title="label: RepaymentsOfSubordinatedDebt to label_RepaymentsOfSubordinatedDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfSubordinatedDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfSubordinatedDebt" xml:lang="en-US" id="label_RepaymentsOfSubordinatedDebt_2">Repayments of Subordinated Debt</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfDebt" xlink:label="RepaymentsOfDebt" xlink:title="RepaymentsOfDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RepaymentsOfDebt" xml:lang="en-US" id="label_RepaymentsOfDebt">Payment of outstanding principal and accrued interest</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfDebt" xlink:to="label_RepaymentsOfDebt" xlink:title="label: RepaymentsOfDebt to label_RepaymentsOfDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfDebt" xml:lang="en-US" id="label_RepaymentsOfDebt_2">Repayments of Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfDebt" xlink:to="label_RepaymentsOfDebt_2" xlink:title="label: RepaymentsOfDebt to label_RepaymentsOfDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfOtherLongTermDebt" xlink:label="RepaymentsOfOtherLongTermDebt" xlink:title="RepaymentsOfOtherLongTermDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfOtherLongTermDebt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RepaymentsOfOtherLongTermDebt" xml:lang="en-US" id="label_RepaymentsOfOtherLongTermDebt">Payments of Other Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfOtherLongTermDebt" xlink:to="label_RepaymentsOfOtherLongTermDebt" xlink:title="label: RepaymentsOfOtherLongTermDebt to label_RepaymentsOfOtherLongTermDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfOtherLongTermDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfOtherLongTermDebt" xml:lang="en-US" id="label_RepaymentsOfOtherLongTermDebt_2">Repayments of Other Long-term Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfOtherLongTermDebt" xlink:to="label_RepaymentsOfOtherLongTermDebt_2" xlink:title="label: RepaymentsOfOtherLongTermDebt to label_RepaymentsOfOtherLongTermDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt" xlink:label="RepaymentsOfConvertibleDebt" xlink:title="RepaymentsOfConvertibleDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfConvertibleDebt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RepaymentsOfConvertibleDebt" xml:lang="en-US" id="label_RepaymentsOfConvertibleDebt">Payment of Convertible Subordinated Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfConvertibleDebt" xlink:to="label_RepaymentsOfConvertibleDebt" xlink:title="label: RepaymentsOfConvertibleDebt to label_RepaymentsOfConvertibleDebt" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfConvertibleDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfConvertibleDebt" xml:lang="en-US" id="label_RepaymentsOfConvertibleDebt_2">Repayments of Convertible Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfConvertibleDebt" xlink:to="label_RepaymentsOfConvertibleDebt_2" xlink:title="label: RepaymentsOfConvertibleDebt to label_RepaymentsOfConvertibleDebt" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="RepurchaseAgreementCounterpartyNameDomain" xlink:title="RepurchaseAgreementCounterpartyNameDomain" />
    <link:label xlink:type="resource" xlink:label="label_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepurchaseAgreementCounterpartyNameDomain" xml:lang="en-US" id="label_RepurchaseAgreementCounterpartyNameDomain">Counterparty Name [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepurchaseAgreementCounterpartyNameDomain" xlink:to="label_RepurchaseAgreementCounterpartyNameDomain" xlink:title="label: RepurchaseAgreementCounterpartyNameDomain to label_RepurchaseAgreementCounterpartyNameDomain" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="ResearchAndDevelopmentExpense" xlink:title="ResearchAndDevelopmentExpense" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchAndDevelopmentExpense" xml:lang="en-US" id="label_ResearchAndDevelopmentExpense">Research and Development</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="label_ResearchAndDevelopmentExpense" xlink:title="label: ResearchAndDevelopmentExpense to label_ResearchAndDevelopmentExpense" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchAndDevelopmentExpense" xml:lang="en-US" id="label_ResearchAndDevelopmentExpense_2">Research and Development Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="label_ResearchAndDevelopmentExpense_2" xlink:title="label: ResearchAndDevelopmentExpense to label_ResearchAndDevelopmentExpense" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="ResearchAndDevelopmentExpenseMember" xlink:title="ResearchAndDevelopmentExpenseMember" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpenseMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchAndDevelopmentExpenseMember" xml:lang="en-US" id="label_ResearchAndDevelopmentExpenseMember">Research and development</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpenseMember" xlink:to="label_ResearchAndDevelopmentExpenseMember" xlink:title="label: ResearchAndDevelopmentExpenseMember to label_ResearchAndDevelopmentExpenseMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpenseMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchAndDevelopmentExpenseMember" xml:lang="en-US" id="label_ResearchAndDevelopmentExpenseMember_2">Research and Development Expense [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpenseMember" xlink:to="label_ResearchAndDevelopmentExpenseMember_2" xlink:title="label: ResearchAndDevelopmentExpenseMember to label_ResearchAndDevelopmentExpenseMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="ResearchAndDevelopmentExpensePolicy" xlink:title="ResearchAndDevelopmentExpensePolicy" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpensePolicy" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchAndDevelopmentExpensePolicy" xml:lang="en-US" id="label_ResearchAndDevelopmentExpensePolicy">Research and Development Expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpensePolicy" xlink:to="label_ResearchAndDevelopmentExpensePolicy" xlink:title="label: ResearchAndDevelopmentExpensePolicy to label_ResearchAndDevelopmentExpensePolicy" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpensePolicy_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchAndDevelopmentExpensePolicy" xml:lang="en-US" id="label_ResearchAndDevelopmentExpensePolicy_2">Research and Development Expense, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpensePolicy" xlink:to="label_ResearchAndDevelopmentExpensePolicy_2" xlink:title="label: ResearchAndDevelopmentExpensePolicy to label_ResearchAndDevelopmentExpensePolicy" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ResearchMember" xlink:label="ResearchMember" xlink:title="ResearchMember" />
    <link:label xlink:type="resource" xlink:label="label_ResearchMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchMember" xml:lang="en-US" id="label_ResearchMember">R&amp;D credit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchMember" xlink:to="label_ResearchMember" xlink:title="label: ResearchMember to label_ResearchMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ResearchMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchMember" xml:lang="en-US" id="label_ResearchMember_2">Research Tax Credit Carryforward [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchMember" xlink:to="label_ResearchMember_2" xlink:title="label: ResearchMember to label_ResearchMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="RestrictedStockMember" xlink:title="RestrictedStockMember" />
    <link:label xlink:type="resource" xlink:label="label_RestrictedStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RestrictedStockMember" xml:lang="en-US" id="label_RestrictedStockMember">Restricted stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestrictedStockMember" xlink:to="label_RestrictedStockMember" xlink:title="label: RestrictedStockMember to label_RestrictedStockMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RestrictedStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RestrictedStockMember" xml:lang="en-US" id="label_RestrictedStockMember_2">Restricted Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestrictedStockMember" xlink:to="label_RestrictedStockMember_2" xlink:title="label: RestrictedStockMember to label_RestrictedStockMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:label="RestrictedCashAndCashEquivalentsNoncurrent" xlink:title="RestrictedCashAndCashEquivalentsNoncurrent" />
    <link:label xlink:type="resource" xlink:label="label_RestrictedCashAndCashEquivalentsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RestrictedCashAndCashEquivalentsNoncurrent" xml:lang="en-US" id="label_RestrictedCashAndCashEquivalentsNoncurrent">Restricted cash related to security deposit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestrictedCashAndCashEquivalentsNoncurrent" xlink:to="label_RestrictedCashAndCashEquivalentsNoncurrent" xlink:title="label: RestrictedCashAndCashEquivalentsNoncurrent to label_RestrictedCashAndCashEquivalentsNoncurrent" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RestrictedCashAndCashEquivalentsNoncurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RestrictedCashAndCashEquivalentsNoncurrent" xml:lang="en-US" id="label_RestrictedCashAndCashEquivalentsNoncurrent_2">Restricted Cash and Cash Equivalents, Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestrictedCashAndCashEquivalentsNoncurrent" xlink:to="label_RestrictedCashAndCashEquivalentsNoncurrent_2" xlink:title="label: RestrictedCashAndCashEquivalentsNoncurrent to label_RestrictedCashAndCashEquivalentsNoncurrent" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RetainedEarningsMember" xml:lang="en-US" id="label_RetainedEarningsMember">Accumulated Deficit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsMember" xlink:to="label_RetainedEarningsMember" xlink:title="label: RetainedEarningsMember to label_RetainedEarningsMember" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RetainedEarningsMember" xml:lang="en-US" id="label_RetainedEarningsMember_2">Retained Earnings [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsMember" xlink:to="label_RetainedEarningsMember_2" xlink:title="label: RetainedEarningsMember to label_RetainedEarningsMember" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RetainedEarningsAccumulatedDeficit" xml:lang="en-US" id="label_RetainedEarningsAccumulatedDeficit">Accumulated Deficit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsAccumulatedDeficit" xlink:to="label_RetainedEarningsAccumulatedDeficit" xlink:title="label: RetainedEarningsAccumulatedDeficit to label_RetainedEarningsAccumulatedDeficit" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsAccumulatedDeficit_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RetainedEarningsAccumulatedDeficit" xml:lang="en-US" id="label_RetainedEarningsAccumulatedDeficit_2">Retained Earnings (Accumulated Deficit)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsAccumulatedDeficit" xlink:to="label_RetainedEarningsAccumulatedDeficit_2" xlink:title="label: RetainedEarningsAccumulatedDeficit to label_RetainedEarningsAccumulatedDeficit" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RevenueRecognitionAbstract" xlink:label="RevenueRecognitionAbstract" xlink:title="RevenueRecognitionAbstract" />
    <link:label xlink:type="resource" xlink:label="label_RevenueRecognitionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenueRecognitionAbstract" xml:lang="en-US" id="label_RevenueRecognitionAbstract">Other Income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueRecognitionAbstract" xlink:to="label_RevenueRecognitionAbstract" xlink:title="label: RevenueRecognitionAbstract to label_RevenueRecognitionAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueRecognitionAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenueRecognitionAbstract" xml:lang="en-US" id="label_RevenueRecognitionAbstract_2">Revenue Recognition [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueRecognitionAbstract" xlink:to="label_RevenueRecognitionAbstract_2" xlink:title="label: RevenueRecognitionAbstract to label_RevenueRecognitionAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="RevenueRecognitionPolicyTextBlock" xlink:title="RevenueRecognitionPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_RevenueRecognitionPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenueRecognitionPolicyTextBlock" xml:lang="en-US" id="label_RevenueRecognitionPolicyTextBlock">Revenue Recognition</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueRecognitionPolicyTextBlock" xlink:to="label_RevenueRecognitionPolicyTextBlock" xlink:title="label: RevenueRecognitionPolicyTextBlock to label_RevenueRecognitionPolicyTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenueRecognitionPolicyTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenueRecognitionPolicyTextBlock" xml:lang="en-US" id="label_RevenueRecognitionPolicyTextBlock_2">Revenue Recognition, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueRecognitionPolicyTextBlock" xlink:to="label_RevenueRecognitionPolicyTextBlock_2" xlink:title="label: RevenueRecognitionPolicyTextBlock to label_RevenueRecognitionPolicyTextBlock" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_Revenues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_Revenues" xml:lang="en-US" id="label_Revenues">Total revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Revenues" xlink:to="label_Revenues" xlink:title="label: Revenues to label_Revenues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_Revenues_2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_Revenues" xml:lang="en-US" id="label_Revenues_2">Total Revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Revenues" xlink:to="label_Revenues_2" xlink:title="label: Revenues to label_Revenues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_Revenues_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Revenues" xml:lang="en-US" id="label_Revenues_3">Revenues</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Revenues" xlink:to="label_Revenues_3" xlink:title="label: Revenues to label_Revenues" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_RevenuesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenuesAbstract" xml:lang="en-US" id="label_RevenuesAbstract">REVENUE:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenuesAbstract" xlink:to="label_RevenuesAbstract" xlink:title="label: RevenuesAbstract to label_RevenuesAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_RevenuesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenuesAbstract" xml:lang="en-US" id="label_RevenuesAbstract_2">Revenues [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenuesAbstract" xlink:to="label_RevenuesAbstract_2" xlink:title="label: RevenuesAbstract to label_RevenuesAbstract" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfNonvestedShareActivityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfNonvestedShareActivityTableTextBlock" xml:lang="en-US" id="label_ScheduleOfNonvestedShareActivityTableTextBlock">Summary of restricted stock activity</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xml:lang="en-US" id="label_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock">Summary of stock option activity</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xml:lang="en-US" id="label_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_2">Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:title="ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xml:lang="en-US" id="label_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock">Schedule of assumptions used for the fair values of employee and director stock options granted</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xml:lang="en-US" id="label_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_2">Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:title="ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US" id="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US" id="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_2">Schedule of components of income tax expense attributable to continuing operations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:to="label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_2" xlink:title="label: ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock to label_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:title="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xml:lang="en-US" id="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock">Schedule of principal amounts for the loan which the Company is obligated to repay</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xml:lang="en-US" id="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_2">Schedule of Maturities of Long-term Debt [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:label="ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:title="ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xml:lang="en-US" id="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock">Schedule of intangible assets, net of accumulated amortization, and goodwill</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xml:lang="en-US" id="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_2">Schedule of Intangible Assets and Goodwill [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:to="label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_2" xlink:title="label: ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock to label_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:title="ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xml:lang="en-US" id="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock">Schedule of reconciliation between the amount of reported income tax and the amount computed using the U.S. Statutory rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:to="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:title="label: ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock to label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xml:lang="en-US" id="label_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2">Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:title="ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock">Schedule of principal components of the deferred tax assets and liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:title="label: ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock to label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_2">Schedule of Deferred Tax Assets and Liabilities [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:label="ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:title="ScheduleOfAccruedLiabilitiesTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfAccruedLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfAccruedLiabilitiesTableTextBlock">Schedule of accrued expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:to="label_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:title="label: ScheduleOfAccruedLiabilitiesTableTextBlock to label_ScheduleOfAccruedLiabilitiesTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfAccruedLiabilitiesTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfAccruedLiabilitiesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfAccruedLiabilitiesTableTextBlock_2">Schedule of Accrued Liabilities [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:to="label_ScheduleOfAccruedLiabilitiesTableTextBlock_2" xlink:title="label: ScheduleOfAccruedLiabilitiesTableTextBlock to label_ScheduleOfAccruedLiabilitiesTableTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:title="ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock">Schedule of obligations for base rent and CAM costs under facility and other non-cancelable operating leases</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:to="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:title="label: ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock to label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_2">Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:to="label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_2" xlink:title="label: ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock to label_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:title="ScheduleOfQuarterlyFinancialInformationTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xml:lang="en-US" id="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock">Schedule of selected quarterly financial data (unaudited)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:to="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:title="label: ScheduleOfQuarterlyFinancialInformationTableTextBlock to label_ScheduleOfQuarterlyFinancialInformationTableTextBlock" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xml:lang="en-US" id="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock_2">Schedule of Quarterly Financial Information [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:to="label_ScheduleOfQuarterlyFinancialInformationTableTextBlock_2" xlink:title="label: ScheduleOfQuarterlyFinancialInformationTableTextBlock to label_ScheduleOfQuarterlyFinancialInformationTableTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:title="ScheduleOfAvailableForSaleSecuritiesLineItems" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfAvailableForSaleSecuritiesLineItems" xml:lang="en-US" id="label_ScheduleOfAvailableForSaleSecuritiesLineItems">Marketable Securities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ScheduleOfAvailableForSaleSecuritiesLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfAvailableForSaleSecuritiesLineItems" xml:lang="en-US" id="label_ScheduleOfAvailableForSaleSecuritiesLineItems_2">Schedule of Available-for-sale Securities [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:to="label_ScheduleOfAvailableForSaleSecuritiesLineItems_2" xlink:title="label: ScheduleOfAvailableForSaleSecuritiesLineItems to label_ScheduleOfAvailableForSaleSecuritiesLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xml:lang="en-US" id="label_ScheduleOfBusinessAcquisitionsByAcquisitionTable">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:label="ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:title="ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
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    <link:label xlink:type="resource" xlink:label="label_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SecuredDebtMember" xml:lang="en-US" id="label_SecuredDebtMember">Term Loan</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">Stock-Based Compensation</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_2">Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" use="optional" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod">Canceled (in shares)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue">Vested (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_2">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2">Shares available for issuance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_3">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue">Total intrinsic value of stock options exercised (in dollars)</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" />
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_2">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate">Risk-free interest rate (as a percent)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_2">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract">Assumptions used for fair values of employee and director stock options granted</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_2">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">Weighted average grant-date fair value (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice">Options Outstanding at beginning of the period (in dollars per share)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2">Options Outstanding at the end of the period (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_3">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_3" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue">Aggregate intrinsic value of stock options vested and expected to vest (in dollars)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:title="ShareBasedCompensationOptionAndIncentivePlansPolicy" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationOptionAndIncentivePlansPolicy" xml:lang="en-US" id="label_ShareBasedCompensationOptionAndIncentivePlansPolicy">Stock-Based Compensation</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber">Options Outstanding at the end of the period (in shares)</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" use="optional" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" />
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward">Shares</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="SignificantAccountingPoliciesTextBlock" xlink:title="SignificantAccountingPoliciesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SignificantAccountingPoliciesTextBlock" xml:lang="en-US" id="label_SignificantAccountingPoliciesTextBlock">Significant Accounting Policies [Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_SignificantAccountingPoliciesTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SignificantAccountingPoliciesTextBlock" xml:lang="en-US" id="label_SignificantAccountingPoliciesTextBlock_2">Significant Accounting Policies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantAccountingPoliciesTextBlock" xlink:to="label_SignificantAccountingPoliciesTextBlock_2" xlink:title="label: SignificantAccountingPoliciesTextBlock to label_SignificantAccountingPoliciesTextBlock" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:title="StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" />
    <link:label xlink:type="resource" xlink:label="label_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xml:lang="en-US" id="label_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations">State</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember" xlink:label="StateAndLocalJurisdictionMember" xlink:title="StateAndLocalJurisdictionMember" />
    <link:label xlink:type="resource" xlink:label="label_StateAndLocalJurisdictionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StateAndLocalJurisdictionMember" xml:lang="en-US" id="label_StateAndLocalJurisdictionMember">State</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StateAndLocalJurisdictionMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StateAndLocalJurisdictionMember" xml:lang="en-US" id="label_StateAndLocalJurisdictionMember_2">State and Local Jurisdiction [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StateAndLocalJurisdictionMember" xlink:to="label_StateAndLocalJurisdictionMember_2" xlink:title="label: StateAndLocalJurisdictionMember to label_StateAndLocalJurisdictionMember" use="optional" />
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    <link:label xlink:type="resource" xlink:label="label_StatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementTable" xml:lang="en-US" id="label_StatementTable">Statement [Table]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StatementLineItems" xml:lang="en-US" id="label_StatementLineItems">Statement</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StatementLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementLineItems" xml:lang="en-US" id="label_StatementLineItems_2">Statement [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementLineItems" xlink:to="label_StatementLineItems_2" xlink:title="label: StatementLineItems to label_StatementLineItems" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="StatementOfStockholdersEquityAbstract" xlink:title="StatementOfStockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfStockholdersEquityAbstract" xml:lang="en-US" id="label_StatementOfStockholdersEquityAbstract">CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease">Stock Issued During Period, Shares, Period Increase (Decrease)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesOther" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_StockIssuedDuringPeriodSharesOther" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesOther">Shares of common stock sold under the Cantor Agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesOther" xlink:to="label_StockIssuedDuringPeriodSharesOther" xlink:title="label: StockIssuedDuringPeriodSharesOther to label_StockIssuedDuringPeriodSharesOther" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesOther_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesOther" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesOther_2">Shares Issued in Connection with Cantor Agreement (in Shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesOther" xlink:to="label_StockIssuedDuringPeriodSharesOther_2" xlink:title="label: StockIssuedDuringPeriodSharesOther to label_StockIssuedDuringPeriodSharesOther" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesOther_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesOther" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesOther_3">Stock Issued During Period, Shares, Other</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesOther" xlink:to="label_StockIssuedDuringPeriodSharesOther_3" xlink:title="label: StockIssuedDuringPeriodSharesOther to label_StockIssuedDuringPeriodSharesOther" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:label="StockGrantedDuringPeriodValueSharebasedCompensation" xlink:title="StockGrantedDuringPeriodValueSharebasedCompensation" />
    <link:label xlink:type="resource" xlink:label="label_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockGrantedDuringPeriodValueSharebasedCompensation" xml:lang="en-US" id="label_StockGrantedDuringPeriodValueSharebasedCompensation">Shares Issued to Executive Officers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockGrantedDuringPeriodValueSharebasedCompensation" xlink:to="label_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:title="label: StockGrantedDuringPeriodValueSharebasedCompensation to label_StockGrantedDuringPeriodValueSharebasedCompensation" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockGrantedDuringPeriodValueSharebasedCompensation_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockGrantedDuringPeriodValueSharebasedCompensation" xml:lang="en-US" id="label_StockGrantedDuringPeriodValueSharebasedCompensation_2">Stock Granted, Value, Share-based Compensation, Net of Forfeitures</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockGrantedDuringPeriodValueSharebasedCompensation" xlink:to="label_StockGrantedDuringPeriodValueSharebasedCompensation_2" xlink:title="label: StockGrantedDuringPeriodValueSharebasedCompensation to label_StockGrantedDuringPeriodValueSharebasedCompensation" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:label="StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:title="StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan">Shares Issued under Stock Option and Employee Stock Purchase Plans</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:to="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:title="label: StockIssuedDuringPeriodValueEmployeeStockPurchasePlan to label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_2">Stock Issued During Period, Value, Employee Stock Purchase Plan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:to="label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_2" xlink:title="label: StockIssuedDuringPeriodValueEmployeeStockPurchasePlan to label_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="StockIssuedDuringPeriodSharesStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesStockOptionsExercised">Exercised (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="label: StockIssuedDuringPeriodSharesStockOptionsExercised to label_StockIssuedDuringPeriodSharesStockOptionsExercised" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesStockOptionsExercised_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesStockOptionsExercised_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="label_StockIssuedDuringPeriodSharesStockOptionsExercised_2" xlink:title="label: StockIssuedDuringPeriodSharesStockOptionsExercised to label_StockIssuedDuringPeriodSharesStockOptionsExercised" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:title="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans">Shares Issued under Stock Option and Employee Stock Purchase Plans (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:to="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:title="label: StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans to label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_2">Shares issued under the plan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:to="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_2" xlink:title="label: StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans to label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_3">Stock Issued During Period, Shares, Employee Stock Purchase Plans</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:to="label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_3" xlink:title="label: StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans to label_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesNewIssues">Common stock issued (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesNewIssues" xlink:to="label_StockIssuedDuringPeriodSharesNewIssues" xlink:title="label: StockIssuedDuringPeriodSharesNewIssues to label_StockIssuedDuringPeriodSharesNewIssues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesNewIssues_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesNewIssues_2">Common stock in an underwritten public offering issued (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesNewIssues" xlink:to="label_StockIssuedDuringPeriodSharesNewIssues_2" xlink:title="label: StockIssuedDuringPeriodSharesNewIssues to label_StockIssuedDuringPeriodSharesNewIssues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesNewIssues_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesNewIssues_3">Stock Issued During Period, Shares, New Issues</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesNewIssues" xlink:to="label_StockIssuedDuringPeriodSharesNewIssues_3" xlink:title="label: StockIssuedDuringPeriodSharesNewIssues to label_StockIssuedDuringPeriodSharesNewIssues" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueOther" xlink:label="StockIssuedDuringPeriodValueOther" xlink:title="StockIssuedDuringPeriodValueOther" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueOther" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueOther" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueOther">Shares Issued in Connection with Cantor Agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueOther" xlink:to="label_StockIssuedDuringPeriodValueOther" xlink:title="label: StockIssuedDuringPeriodValueOther to label_StockIssuedDuringPeriodValueOther" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueOther_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueOther" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueOther_2">Stock Issued During Period, Value, Other</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueOther" xlink:to="label_StockIssuedDuringPeriodValueOther_2" xlink:title="label: StockIssuedDuringPeriodValueOther to label_StockIssuedDuringPeriodValueOther" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="StockIssuedDuringPeriodValueNewIssues" xlink:title="StockIssuedDuringPeriodValueNewIssues" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueNewIssues">Shares Issued in Underwritten Offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueNewIssues" xlink:to="label_StockIssuedDuringPeriodValueNewIssues" xlink:title="label: StockIssuedDuringPeriodValueNewIssues to label_StockIssuedDuringPeriodValueNewIssues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueNewIssues_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueNewIssues_2">Net proceeds from sale of stock in an underwritten public offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueNewIssues" xlink:to="label_StockIssuedDuringPeriodValueNewIssues_2" xlink:title="label: StockIssuedDuringPeriodValueNewIssues to label_StockIssuedDuringPeriodValueNewIssues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueNewIssues_3" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:title="label_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueNewIssues_3">Amount raised from shares issued in underwritten public offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueNewIssues" xlink:to="label_StockIssuedDuringPeriodValueNewIssues_3" xlink:title="label: StockIssuedDuringPeriodValueNewIssues to label_StockIssuedDuringPeriodValueNewIssues" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueNewIssues_4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueNewIssues_4">Stock Issued During Period, Value, New Issues</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueNewIssues" xlink:to="label_StockIssuedDuringPeriodValueNewIssues_4" xlink:title="label: StockIssuedDuringPeriodValueNewIssues to label_StockIssuedDuringPeriodValueNewIssues" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="StockholdersEquityAbstract" xlink:title="StockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityAbstract" xml:lang="en-US" id="label_StockholdersEquityAbstract">Stockholders' Equity:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityAbstract" xlink:to="label_StockholdersEquityAbstract" xlink:title="label: StockholdersEquityAbstract to label_StockholdersEquityAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityAbstract" xml:lang="en-US" id="label_StockholdersEquityAbstract_2">Stockholders' Equity Attributable to Parent [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityAbstract" xlink:to="label_StockholdersEquityAbstract_2" xlink:title="label: StockholdersEquityAbstract to label_StockholdersEquityAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:label="StockholdersEquityPeriodIncreaseDecrease" xlink:title="StockholdersEquityPeriodIncreaseDecrease" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityPeriodIncreaseDecrease" xml:lang="en-US" id="label_StockholdersEquityPeriodIncreaseDecrease">Stockholders' Equity, Period Increase (Decrease)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityPeriodIncreaseDecrease" xlink:to="label_StockholdersEquityPeriodIncreaseDecrease" xlink:title="label: StockholdersEquityPeriodIncreaseDecrease to label_StockholdersEquityPeriodIncreaseDecrease" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityPeriodIncreaseDecrease_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityPeriodIncreaseDecrease" xml:lang="en-US" id="label_StockholdersEquityPeriodIncreaseDecrease_2">Stockholders' Equity, Period Increase (Decrease)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityPeriodIncreaseDecrease" xlink:to="label_StockholdersEquityPeriodIncreaseDecrease_2" xlink:title="label: StockholdersEquityPeriodIncreaseDecrease to label_StockholdersEquityPeriodIncreaseDecrease" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_StockholdersEquity" xml:lang="en-US" id="label_StockholdersEquity">Total Stockholders' Equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity" xlink:title="label: StockholdersEquity to label_StockholdersEquity" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquity_2" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_StockholdersEquity" xml:lang="en-US" id="label_StockholdersEquity_2">Balance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity_2" xlink:title="label: StockholdersEquity to label_StockholdersEquity" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquity_3" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_StockholdersEquity" xml:lang="en-US" id="label_StockholdersEquity_3">Balance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity_3" xlink:title="label: StockholdersEquity to label_StockholdersEquity" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquity_4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquity" xml:lang="en-US" id="label_StockholdersEquity_4">Balance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity_4" xlink:title="label: StockholdersEquity to label_StockholdersEquity" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquity_5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquity" xml:lang="en-US" id="label_StockholdersEquity_5">Stockholders' Equity Attributable to Parent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity_5" xlink:title="label: StockholdersEquity to label_StockholdersEquity" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityNoteAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityNoteAbstract" xml:lang="en-US" id="label_StockholdersEquityNoteAbstract">Stockholders' Equity</link:label>
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