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  <link:roleRef roleURI="http://www.omnicell.com/role/RestructuringExpensesNarrativeDetails" xlink:type="simple" xlink:href="omcl-20200331.xsd#RestructuringExpensesNarrativeDetails"/>
  <link:calculationLink xlink:role="http://www.omnicell.com/role/RestructuringExpensesNarrativeDetails" xlink:type="extended"/>
</link:linkbase>
