1. HIV Netherlands Australia Thailand (HIV-NAT) Research Collaboration, Thai Red Cross AIDS Research Center, Bangkok, Thailand.
2. Srinagarind Hospital, Khon Kaen University, Khon Kaen, Thailand.
3. National Center for HIV/AIDS, Dermatology and STDs (NCHADS), Phnom Penh, Cambodia.
4. Chiangrai Prachanukroh Hospital, Chiang Rai, Thailand.
5. Nakornping Hospital, Chiang Mai, Thailand.
6. Prapokklao Hospital, Chantaburi, Thailand.
7. Bamrasnaradura Infectious Disease Institute, Nonthaburi, Thailand.
8. Queen Savang Vadhana Memorial Hospital, Chonburi, Thailand.
9. SEARCH, Thai Red Cross AIDS Research Center, Bangkok, Thailand.
10. Department of Medicine, Chulalongkorn University, Bangkok, Thailand.
11. Department of Pediatrics, Chulalongkorn University, Bangkok, Thailand.