Knox, Margae
Willard-Grace, Rachel
Huang, Beatrice
Grumbach, Kevin
Article History
Received: 10 November 2017
Revised: 26 March 2018
Accepted: 16 May 2018
First Online: 4 June 2018
Compliance with Ethical Standards
: This study was a cross-sectional survey, approved by the Institutional Review Board of the University of California, San Francisco (protocol numbers 11-08048 and 17-23324).
: None.
: The authors declare that they do not have a conflict of interest.