A randomized trial of computerized vs. in-person brief intervention for illicit drug use in primary care: outcomes through 12 months. 

Gryczynski J, Mitchell SG, Gonzales A, Moseley A, Peterson TR, Ondersma SJ, O’Grady KE, Schwartz RP (2015). A randomized trial of computerized vs. in-person brief intervention for illicit drug use in primary care: outcomes through 12 months.  Journal of Substance Abuse Treatment 50, 3-10. doi: 10.1016/j.jsat.2014.09.002. Epub 2014 Sep 16. PMID: 25282578.