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Accrued Expenses (Tables) | 12 Months Ended
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Dec. 31, 2017
Accrued Expenses |
Summary of Accrued Expenses | The following is a summary of the Company’s accrued expenses at December 31:
|  | 2017 |  | 2016 |
Accrued research and development expenses |  | $ | 2,702,445 |  | $ | 2,513,243 |
Accrued consulting and other professional fees |  |  | 227,811 |  |  | 148,579 |
Other accrued expenses |  |  | 304,421 |  |  | 315,002 |
Accrued employee benefits |  |  | 331,930 |  |  | 290,547 |
Accrued expenses |  | $ | 3,566,607 |  | $ | 3,267,371 |

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