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Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2022
Accrued Expenses  
Schedule of accrued expenses

March 31, 

    

December 31, 

    

2022

    

2021

Clinical trials

$

1,915

$

2,499

Professional fees

 

110

 

181

Payroll and related expenses

 

669

 

2,686

Accrued expenses

$

2,694

$

5,366