1. Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA
2. Thailand Ministry of Public Health - U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand
3. Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
4. The Thai Red Cross AIDS Research Centre, Bangkok, Thailand
5. Office of the Chief Information Officer, Centers for Disease Control and Prevention, Atlanta, GA, USA
6. Department of Disease Control, Thai Ministry of Public Health, Nonthaburi, Thailand