Accrued Liabilities

3 Months Ended

Mar. 31, 2018

5. Accrued Liabilities

Accrued liabilities consist of the following:


	March 31, 2018		December 31, 2017
Accrued research and development service fees	$	991,861	$	578,562
Accrued compensation costs		866,616		2,107,118
Accrued professional fees		269,915		168,168
Accrued facilities operation expenses		188,637		221,103
Other accrued liabilities		85,026		43,286

Total accrued liabilities	$	2,402,055	$	3,118,237