Sodsai Tovanabutra1, Gustavo H. Kijak1, Chris Beyrer2, Christiana Gammon-Richardson1, Supachai Sakkhachornphop3, Tasanai Vongchak3, Jaroon Jittiwutikarn4, Myat Htoo Razak2, Eric Sanders‐Buell1, Merlin L. Robb1, Vinai Suriyanon3, Deborah L. Birx5,1,6, Nelson L. Michael1,6, David D. Celentano2, Francine E. McCutchan1
1U.S. Military HIV Research Program, Rockville, Maryland 20850.
2Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205.
3Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
4Northern Drug Treatment Center, Chiang Mai, Thailand
5Centers for Disease Control, Atlanta, Georgia 30333.
6Walter Reed Army Institute of Research, Silver Spring, Maryland 20910