Published on in Vol 19, No 10 (2017): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8164, first published
.
1 Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
2 Department of Biomedical Informatics, Arizona State University, Scottsdale, AZ, United States