1. U.S. Military HIV Research Program; Walter Reed Army Institute of Research; Silver Spring MD USA
2. Henry M. Jackson Foundation for the Advancement of Military Medicine; Bethesda MD USA
3. Department of Retrovirology; US Army Medical Component, AFRIMS; Bangkok Thailand
4. Department of Disease Control; Ministry of Public Health; Nonthaburi Thailand
5. Center of Excellence for Biomedical and Public Health Informatics BIOPHICS, Faculty of Tropical Medicine; Mahidol University; Bangkok Thailand
6. Vaccine Trials Centre, Faculty of Tropical Medicine; Mahidol University; Bangkok Thailand