Wu Elwin author Columbia University. Social Work Hess Leona author Columbia University. Social Work El-Bassel Nabila author Columbia University. Social Work Gilbert Louisa author Columbia University. Global Health Research Center of Central Asia Witte Susan S. author Columbia University. Social Work Columbia University. Social Intervention Group originator text Presentations 2012 A growing body of science supports the efficacy of couple-based risk reduction interventions to prevent HIV transmission. Compared to the amount of research with heterosexual couples, couple-based research with men who have sex with men (MSM) is nascent, especially with racial/ethnic minority MSM. Thus, it is important to identify challenges in adapting existing couple-based interventions originally for heterosexual couples—or developing ones de novo—for MSM couples. Presented at the XIX International AIDS Conference, Washington, D.C., July 22-27, 2012. Public health Social psychology