1. Clinical Trials Unit, Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana;
2. Statistical and Data Analysis Center, Harvard University T. H. Chan School of Public Health, Boston, MA;
3. Division of Infectious Diseases, University of Pennsylvania, Philadelphia, PA;
4. Durban International CRS, Enhancing Care Foundation, Durban, South Africa;
5. Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL;
6. Department of Pediatrics, Medicine and Pathology, Molecular and Virology Clinical Laboratories, University of Colorado Denver, Colorado, CO;
7. Asociacion Civil Impacta Salud y Educacion, Peru Clinical Trials Unit, Lima, Peru;
8. Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA;
9. Clinical Trials Research Centre, Department of Medicine, University of Zimbabwe, Harare, Zimbabwe;
10. Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom; and
11. Division of Infectious Diseases, Brigham and Women's Hospital and Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA.