1. Ifakara Health Institute, Plot 463, Kiko Avenue Mikocheni, PO Box 78 373, Dar es Salaam, Tanzania
2. Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland
3. University of Basel, Basel, Switzerland
4. Swiss Centre for International Health (SCIH), Basel, Switzerland
5. Health promotion and System Strengthening (HPSS), Dodoma, Tanzania
6. School of Public Health and Social Sciences (SPHSS), Muhimbili University of Health and Allied Sciences (MUHAS), Dar es Salaam, Tanzania