Published on in Vol 3, No 1 (2018): Jan-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9591, first published
.
1 Better Therapeutics LLC, San Francisco, CA, United States
2 Prevention Research Center, Griffin Hospital, Yale University, Derby, CT, United States
3 Department of Nutrition, Harvard TH Chan School of Public Health, Harvard University, Boston, MA, United States