Text and Data Mining valid from 2019-07-03
Received: 25 October 2018
Revised: 7 March 2019
Accepted: 16 April 2019
First Online: 3 July 2019
Compliance with Ethical Standards
: The American Academy of Family Physicians IRB approved the study.
: At the time of this study, all authors and all those named above were employees of the American Board of Internal Medicine or the American Board of Family Medicine.