1. Rollins School of Public Health, Emory University, Atlanta, Georgia.
2. Emory Center for AIDS Research, Emory University, Atlanta, Georgia.
3. College of Public Health, University of Kentucky, Lexington, Kentucky.
4. Rural Center for AIDS/STD Prevention, Indiana University, Bloomington, Indiana.
5. Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia.
6. Department of Medicine, Emory University School of Medicine, Atlanta, Georgia.