[1] Univ Calif San Francisco, Ctr AIDS Prevent Studies, San Francisco, CA 94105 USA
[2] Columbia Univ, New York, NY USA
[3] New York State Psychiat Inst & Hosp, HIV Ctr Clin & Behav Studies, New York, NY 10032 USA
[4] Princeton Univ, Ctr Hlth & Wellbeing, Princeton, NJ 08544 USA
[5] Yale Univ, Ctr Interdisciplinary Res AIDS, New Haven, CT USA
[6] Med Coll Wisconsin, Ctr AIDS Intervent Res, Milwaukee, WI 53226 USA
[7] Duke Univ, Durham, NC USA
[8] Univ Calif Los Angeles, Ctr HIV Identificat Prevent & Treatment Serv, Los Angeles, CA USA