1. South American Program in HIV Prevention Research (SAPHIR), Division of Infectious Diseases, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
2. Department of Surgery, University of California Los Angeles, Los Angeles, CA, USA
3. Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
4. Hornet Gay Social Network, Los Angeles, CA, USA
5. Gay Sexuality and Social Policy Initiative, Luskin School of Public Affairs, University of California Los Angeles, Los Angeles, CA, USA
6. Escuela de Gobierno Alberto Lleras Camargo, Universidad de Los Andes, Bogotá, Colombia
7. Silver School of Social Work, New York University, New York, NY, USA
8. McGovern Medical School, The University of Texas Health Sciences Center at Houston, Houston, TX, USA