EXHIBIT A
Joint Filing Statement
We, the undersigned, hereby express our agreement that the attached Schedule 13G is filed on behalf of each of us.
Date: February 12, 2016
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By: | | /s/ Harvey B. Cash | | | | | | |
Name: Harvey B. Cash | | | | INTERWEST PARTNERS VIII, LP |
| | | | | | By: | | InterWest Management Partners VIII, LLC |
| | | | | | | | its General Partner |
By: | | /s/ Philip T. Gianos | | | | | | |
Name: Philip T. Gianos | | | | | | |
| | | | | | By: | | /s/ Arnold L. Oronsky |
By: | | /s/ W. Stephen Holmes | | | | | | Managing Director |
Name: W. Stephen Holmes | | | | | | |
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| | | | | | INTERWEST INVESTORS VIII, LP |
By: | | /s/ Gilbert H. Kliman | | | | By: | | InterWest Management Partners VIII, LLC |
Name: Gilbert H. Kliman | | | | | | its General Partner |
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By: | | /s/ Arnold L. Oronsky | | | | By: | | /s/ Arnold L. Oronsky |
Name: Arnold L. Oronsky | | | | | | Managing Director |
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| | | | | | INTERWEST INVESTORS Q VIII, LP |
| | | | | | By: | | InterWest Management Partners VIII, LLC |
| | | | | | | | its General Partner |
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| | | | | | By: | | /s/ Arnold L. Oronsky |
| | | | | | | | Managing Director |
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| | | | | | INTERWEST MANAGEMENT PARTNERS VIII, LLC |
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| | | | | | By: | | /s/ Arnold L. Oronsky |
| | | | | | | | Managing Director |