1. University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe;
2. Harvard T.H. Chan School of Public Health, Center for Biostatistics in AIDS Research, Boston, MA;
3. Johns Hopkins University Research Collaboration, Makerere University, Kampala, Uganda;
4. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Blantyre, Malawi;
5. Perinatal HIV Research Unit, University of Witwatersrand, Johannesburg, South Africa;
6. Stellenbosch University, Cape Town, South Africa;
7. Centre Aids Prevention Research South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa;
8. Radiology Department, University of Zimbabwe Faculty of Medicine and Health Sciences, Harare, Zimbabwe;
9. FHI 360, IMPAACT Operations Center, Durham NC, USA;
10. Cancer Center, University of Hawaii, Honolulu, HI;
11. Prevention Care and Treatment Division, Office of HIV/AIDS, United States Agency for International Development (USAID), Washington, DC;
12. Division of AIDS, National Institute of Allergy and Infectious Diseases, Bethesda, MD;
13. Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD; and
14. Child and Adolescent Health Unit, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe.