1. Department of Obstetrics and Gynecology; Northwestern University, Chicago; IL USA
2. Medical Practice Evaluation Center, Department of Medicine; Massachusetts General Hospital and Harvard Medical School; Boston MA USA
3. Divisions of General Medicine; Department of Medicine; Massachusetts General Hospital and Harvard Medical School; Boston MA USA
4. Division of Infectious Diseases; Beth Israel Deaconess Medical Center; Boston MA USA
5. Department of Immunology and Infectious Diseases; Harvard T.H; Chan School of Public Health; Boston MA USA
6. The Botswana-Harvard School of Public Health AIDS Institute Partnership for HIV Research and Education; Gaborone Botswana
7. Université Bordeaux; Institut de Santé Publique, d'Epidémiologie et de Dévelopement (ISPED), Centre INSERM; U1219-Bordeaux Population Health; Bordeaux France
8. Organization for Public Health Interventions and Development; Harare Zimbabwe
9. Harvard University Center for AIDS Research Boston; MA USA
10. Inserm U1027; University of Toulouse 3; Toulouse France
11. Division of Infectious Disease; Brigham and Women's Hospital; Boston MA USA
12. Division of Infectious Diseases; Department of Medicine; Massachusetts General Hospital; Harvard Medical School; Boston MA USA
13. Department of Maternal Newborn; Child and Adolescent Health World Health Organization; Geneva Switzerland