1. Center for Research and Education on Gender and Sexuality, San Francisco State University
2. Center for Research and Education on Gender and Sexuality, San Francisco State University Department of Medicine, Center for AIDS Prevention Studies, University of California, San Francisco
3. Department of Health Behavior and Biological Sciences, Center for Sexuality and Health Disparities, School of Nursing, University of Michigan
4. Department of Medicine, Center for AIDS Prevention Studies, University of California, San Francisco