Published on in Vol 21 , No 2 (2019) :February
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/13125, first published
.
1 Harvard Medical School, Boston, MA, US
2 Massachusetts General Hospital, Boston, MA, US
3 Partners Healthcare, Connected Health, Boston, MA, US
4 Brigham & Women's Hospital, Internal Medicine, Boston, MA, US
*these authors contributed equally