13G Filing: Armistice Capital and Ophthotech Corp. (OPHT)

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Exhibit A
AGREEMENT
The undersigned agree that this Schedule 13G dated June 12, 2017 relating to the Common Stock, $0.001 par value per share, of Ophthotech Corporation shall be filed on behalf of the undersigned.
Armistice Capital, LLC
By:  /s/ Steven Boyd
Steven Boyd
Managing Member
Armistice Capital Master Fund Ltd.
By:  /s/ Steven Boyd
Steven Boyd
Director
/s/  Steven Boyd
Steven Boyd

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