Text and Data Mining valid from 2018-01-29
Received: 30 May 2017
Revised: 27 October 2017
Accepted: 4 December 2017
First Online: 29 January 2018
Compliance with Ethical Standards
: Presented in part at the annual meeting of the Society of General Internal Medicine, Hollywood, FL, May 11–14, 2016.
: The authors declare that they do not have a conflict of interest.