Published on in Vol 5, No 12 (2017): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8910, first published
.
1 Department of Epidemiology and Public Health, School of Medicine, University of Maryland, Baltimore, MD, United States
2 School of Social Work, Fordham University, Baltimore, NY, United States