1. Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Atlanta, Georgia.
2. Department of Microbiology, Immunology, and Parisitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana.
3. Global AIDS Program, Center for Global Health, CDC, Beijing, China.
4. Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD and Tuberculosis Prevention, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia.
5. Department of Pediatrics, Tulane University Health Sciences Center, New Orleans, Louisiana.
6. University of Miami School of Medicine, Miami, Florida.