1. The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), Bangkok, Thailand, South East Asia Research Collaboration with Hawaii (SEARCH), Bangkok, Thailand,
2. Umaporn Siangphoe, RN, MSc The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), Bangkok, Thailand
3. Bhumipol Hospital, Bangkok, Thailand, Chulalongkorn University, Bangkok, Thailand
4. Chulalongkorn University, Bangkok, Thailand