1. Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok
2. Department of Medicine, Bamrasnaradura Infectious Diseases Institute. Nonthaburi
3. Faculty of Medicine, Khon Kaen University, Khon Kaen
4. Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok
5. Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
6. University of Alabama at Birmingham Medical Center, Birmingham, AL
7. Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
8. Rho Federal Systems Division Inc, Chapel Hill. NC
9. RTI International, Research Triangle Park, NC
10. Duke Clinical Research Institute, Durham, NC
11. Faculty of Medicine. University of Southern California, Los Angeles, CA, USA