EXHIBIT A JOINT FILING AGREEMENTJoint Filing Agreement • October 23rd, 2015 • QVT Financial LP • Pharmaceutical preparations
The undersigned hereby agree that the statement on Schedule 13G filed herewith (and any amendments thereto) signed by each of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
