1. Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
2. Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
3. Botswana University of Pennsylvania Partnership, Gaborone, Botswana
4. Division of Infectious Diseases & Global Public Health, University of California, San Diego, USA
5. Hospital for Tropical Diseases, London, UK
6. University of Botswana, Gaborone, Botswana
7. Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK