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Accrued expenses and other current liabilities
 6 Months Ended
Jun. 30, 2014
Accrued expenses and other current liabilities

2. Accrued expenses and other current liabilities

Accrued expenses and other current liabilities are comprised of the following (in thousands):

 

     June 30,
2014		      December 31,
2013		  

Salary and related expenses

    $ 9,745       $ 12,193   

Research and clinical trial costs

      1,421         1,311   

Accrued interest

      2,396         2,082   

Construction in progress

      2,812         342   

Other

      4,205         5,706   
  

 

 

     

 

 

  

Accrued expenses and other current liabilities

    $ 20,579       $ 21,634