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ACCRUED AND OTHER CURRENT LIABILITIES (Tables) | 3 Months Ended
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Mar. 31, 2013
ACCRUED AND OTHER CURRENT LIABILITIES |
Schedule of accrued and other current liabilities | Accrued and other current liabilities consisted of the following (in $000s):
|  | December 31, |  | March 31, |
|  | 2012 |  | 2013 |
Accrued research and development |  | 3,623 |  | 2,777 |
Accrued legal and professional fees |  | 1,118 |  | 396 |
Other current liabilities |  | 860 |  | 361 |
|  | 5,601 |  | 3,534 |

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