1. Ghana Health Service, Division of Research and Development, Dodowa Health Research Center, Dodowa, Greater Accra, Ghana
2. University of Ghana, School of Public Health, Department of Health Policy, Planning and Management, Legon, Accra, Ghana
3. School of Public Health, University of the Western Cape, Robert Sobukwe Road, Cape Town, Bellville, South Africa
4. Department of Health Policy Planning and Management, Makerere University, School of Public Health, Uganda, East Africa
5. Indiana University, Richard M. Fairbanks School of Public Health Health Sciences Building (RG), 1050 Wishard Blvd, 6th Floor, Indianapolis, IN, USA
6. School of Public Health and Family Medicine, Anzio Road, Observatory, Cape Town, South Africa
7. Ghana Institute of Management and Public Administration, Center for Health Systems and Policy Research (CHESPOR), Achimota, Accra, Ghana
8. Department of Global Health and Development, London School of Hygiene and Tropical Medicine, Keppel Street, London, UK) and