1. Heidelberg University, Heidelberg, Germany
2. International Research Consortium, Kampala, Uganda
3. University of California, San Francisco, California, USA
4. Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
5. Africa Health Research Institute, Durban, South Africa
6. University of Washington, Seattle, Washington, USA
7. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA