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Accrued Expenses (Tables) | 12 Months Ended
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Dec. 31, 2018
Accrued Expenses |
Summary of Accrued Expenses | The following is a summary of the Company’s accrued expenses at December 31:
|  | 2018 |  | 2017 |
Accrued research and development expenses |  | $ | 3,483,741 |  | $ | 2,702,445 |
Accrued consulting and other professional fees |  |  | 140,397 |  |  | 227,811 |
Accrued employee benefits |  |  | 385,789 |  |  | 331,930 |
Other accrued expenses |  |  | 263,693 |  |  | 304,421 |
Accrued expenses |  | $ | 4,273,620 |  | $ | 3,566,607 |

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