Published on in Vol 21, No 4 (2019): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12910, first published
.
1 Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, New York, NY, United States
2 Feinstein Institute for Medical Research, Northwell Health, New York, NY, United States