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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Expenses
Research and development	$ 11,606,197	$ 8,449,267
General and administrative	4,705,674	4,294,545
Total expenses	16,311,871	12,743,812
Loss from operations	(16,311,871)	(12,743,812)
Foreign exchange losses	(6,313)	(18,109)
Investment income	490,984	414,307
Interest expense		(70,649)
Net loss	$ (15,827,200)	$ (12,418,263)
Net loss per share, basic and diluted	$ (0.41)	$ (0.32)
Weighted average shares outstanding, basic and diluted	38,968,110	38,749,343

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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