Funding for this research was provided by:
Agency for Healthcare Research and Quality (P30HS023558)
National Cancer Institute (K24CA212294)
Received: 10 June 2019
Accepted: 20 January 2020
First Online: 7 February 2020
Ethics approval and consent to participate
: We received ethics approval from the Institutional Review Board of the University of California, San Francisco (Study Number 12-09658).
: Not applicable
: The authors declare that they have no competing interests.