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Accrued Expenses (Tables) | 6 Months Ended
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Jun. 30, 2019
Accrued Expenses |
Summary of Accrued Expenses |
|  | June 30, |  | December 31, |
|  | 2019 |  | 2018 |
Accrued research and development expenses |  | $ | 4,663,931 |  | $ | 3,483,741 |
Accrued consulting and other professional fees |  |  | 431,754 |  |  | 140,397 |
Accrued employee benefits |  |  | 513,787 |  |  | 385,789 |
Other accrued expenses |  |  | 153,340 |  |  | 263,693 |
Accrued expenses |  | $ | 5,762,812 |  | $ | 4,273,620 |

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