Published on in Vol 2 , No 2 (2018) :Jul-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11062, first published
.

1 Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, US
2 Nexleaf Analytics, Los Angeles, CA, US