[1] San Francisco State Univ, Hlth Equ Inst, San Francisco, CA 94132 USA
[2] Univ Calif San Francisco, Ctr AIDS Prevent Studies, San Francisco, CA 94143 USA
[3] New York Blood Ctr, Lindsley F Kimball Res Inst, Lab Social & Behav Sci, New York, NY 10021 USA
[4] Columbia Univ, Dept Sociomed Sci, Mailman Sch Publ Hlth, New York, NY USA
[5] Columbia Univ, Dept Epidemiol, Mailman Sch Publ Hlth, New York, NY USA
[6] Aurum Inst, Johannesburg, South Africa
[7] Ctr Dis Control & Prevent, Prevent Res Branch, Div HIV AIDS Prevent, Atlanta, GA USA
[8] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Behav & Soc, Baltimore, MD USA
[9] Univ Miami, Miller Sch Med, Div Hlth Serv Res & Policy, Miami, FL 33136 USA
[10] Univ Calif San Francisco, Dept Anthropol Hist & Social Med, Posit Hlth Program, San Francisco, CA 94143 USA
[11] Univ Miami, Miller Sch Med, NIAID Funded Dev Ctr AIDS Res, Miami, FL 33136 USA
[12] Ctr Dis Control & Prevent, Div HIV AIDS Prevent, Behav & Clin Surveillance Branch, Atlanta, GA USA
[13] Univ Calif San Francisco, Dept Med, Posit Hlth Program, San Francisco, CA USA