Published on in Vol 20, No 12 (2018): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11034, first published
.
1 Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
2 Department of Health Policy, Vanderbilt University School of Medicine, Nashville, TN, United States
*all authors contributed equally