1. Heidelberg Institute of Global Health, Medical Faculty and University Hospital, University of Heidelberg, Heidelberg, Germany.
2. Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland.
3. University of Basel, Basel, Switzerland.
4. Faculty of Integrated Development Studies, University for Development Studies, Wa, Ghana.
5. Health Promotion and System Strengthening Project (HPSS), Dodoma, Tanzania.
6. Kongwa District Council, Dodoma, Tanzania.