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Prepaid Expenses (Tables)
9 Months Ended
Sep. 30, 2021
Prepaid Expenses  
Prepaid Expenses
          
   September 30,  December 31,
   2021  2020
Prepaid insurance  $-   $54,180 
Prepaid stock options for services   87,001    86,999 
Prepaid professional fees   65,000    65,000 
Prepaid research and development expense   296,196    289,746 
Other prepaid costs   16,118    70,350 
Total prepaid expenses  $464,315   $566,275