Published on in Vol 20, No 1 (2018): January
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/7683, first published
.
1 Division of Digestive and Liver Diseases, Indiana University School of Medicine, Indianapolis, IN, United States
2 Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
*these authors contributed equally