Text and Data Mining valid from 2018-01-19
Received: 30 August 2017
Revised: 16 December 2017
Accepted: 24 December 2017
First Online: 19 January 2018
Compliance with Ethical Standards
: Parts of this research were presented as an oral presentation at the Society of General Internal Medicine Annual Meeting on April 21, 2017.
: The authors declare that they do not have a conflict of interest.