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Accrued Expenses and Other Liabilities (Tables)
3 Months Ended
Mar. 31, 2020
Payables And Accruals [Abstract]  
Schedule of Accrued Expenses and Other Liabilities

Accrued expenses and other liabilities consist of the following:

 

 

March 31, 2020

 

 

December 31, 2019

 

Research and development costs and other accrued expenses

$

3,090,336

 

 

$

3,824,950

 

Accrued bonus

 

504,600

 

 

 

 

Professional fees

 

281,050

 

 

 

314,213

 

Vacation pay

 

60,247

 

 

 

 

 

$

3,936,233

 

 

$

4,139,163