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ACCRUED EXPENSES (Tables)
3 Months Ended
Mar. 31, 2021
ACCRUED EXPENSES [Abstract]  
Accrued Expenses
Accrued expenses consist of the following:
 
  
March 31,
  
December 31,
 
  
2021
  
2020
 
Compensation payable
 
$
588,266
  
$
293,534
 
Accrued general and administrative expenses
  
57,702
   
207,468
 
Accrued research and development expenses
  
349,592
   
399,893
 
Accrued interest
  
164,784
   
150,125
 
Total accrued expenses
 
$
1,160,344
  
$
1,051,020