1. University of Washington Seattle WA USA
2. Wits Reproductive Health & HIV Institute (Wits RHI) Johannesburg South Africa
3. Clinical Trials Research Centre University of Zimbabwe College of Health Sciences Harare Zimbabwe
4. Desmond Tutu HIV Foundation Cape Town South Africa
5. Stroger H. Hospital of Cook County Chicago IL USA
6. Faculty of Health Sciences Institute of Infectious Disease and Molecular Medicine University of Cape Town Cape Town South Africa
7. Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa