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Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Summary of Potentially Dilutive Shares of Common Stock

Because the Company reported a net loss for the three months ended March 31, 2019 and 2018, all potentially dilutive shares of common stock have been excluded from the computation of the dilutive net loss per share for all periods presented. Such potentially dilutive shares of common stock consist of the following:

	March 31,
	2019		2018
Potentially dilutive securities, excluded:
Outstanding stock options		33,281		35,603
Unvested restricted stock units		—		541
Warrants to purchase common stock		135,862		201,311
		169,143		237,455