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 14, 2019
By: Name: | /s/ Gilbert H. Kliman by Karen A. Wilson, Power of Attorney Gilbert H. Kliman | INTERWEST PARTNERS VIII, LP By:InterWest Management Partners VIII, LLC | ||||||
its General Partner | ||||||||
By: | /s/ Arnold L. Oronsky | By: | /s/ Arnold L. Oronsky | |||||
Name: | Arnold L. Oronsky | |||||||
INTERWEST INVESTORS VIII, LP By: InterWest Management Partners VIII, LLC its General Partner | ||||||||
By: | /s/ Arnold L. Oronsky | |||||||
Managing Director | ||||||||
INTERWEST INVESTORS Q VIII, LP By: InterWest Management Partners VIII, LLC its General Partner | ||||||||
By: | /s/ Arnold L. Oronsky | |||||||
Managing Director | ||||||||
INTERWEST MANAGEMENT PARTNERS VIII, LLC | ||||||||
By: | /s/ Arnold L. Oronsky | |||||||
Managing Director |