1. Desmond Tutu HIV Centre, Department of Medicine, University of Cape Town, Cape Town, South Africa
2. Population Council, New York, New York, USA
3. Women's Global Health Imperative, RTI International, San Francisco, California, USA
4. UZ-UCSF Collaborative Research Programme, Harare, Zimbabwe
5. Center for AIDS Prevention Studies, University of California San Francisco, San Francisco, California, USA