Published on in Vol 5, No 1 (2019): Jan-Mar
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12344, first published
.
1 Department of Epidemiology, College of Public Health, University of Kentucky, Lexington, KY, United States
2 Department of Environmental Health, Emory University, Atlanta, GA, United States
3 Center on Drug and Alcohol Research, University of Kentucky, Lexington, KY, United States