1. Division of HIV Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, and Thailand Ministry of Public Health-U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand.
2. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
3. Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
4. Service Workers in Group Foundation, Bangkok, Thailand.
5. Rainbow Sky Association of Thailand, Bangkok, Thailand.