1. Srinagarind Hospital, Khon Kaen University, Khon Kaen 40002, Thailand;
2. Srinagarind Hospital, Khon Kaen University, Khon Kaen
3. Ramathibodi Hospital, Mahidol University, Bangkok
4. Siriraj Hospital, Mahidol University, Bangkok
5. Chonburi Hospital, Chonburi
6. Bamrasnaradura Institute, Nonthaburi
7. Chiang Mai University Hospital, Chiang Mai University, Chiang Mai
8. Bureau of AIDS, TB, and STI, Department of Disease Control, Ministry of Public Health, Thailand
9. Chulalongkorn University Hospital, Chulalongkorn University; HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok