Rosenberger Joshua G, Reece Michael, Novak David S, Mayer Kenneth H
Center for Sexual Health Promotion, Indiana University, 1025 East Seventh Street, HPER 116, Bloomington, IN 47405, USA.
AIDS Behav. 2011 Apr;15 Suppl 1:S88-90. doi: 10.1007/s10461-011-9897-y.