1. Bolgatanga Regional Hospital, Ghana Health Service, Bolgatange, Ghana
2. Ghana Health Service, Accra, Ghana
3. UNICEF, Accra, Ghana
4. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
5. School of Public Health, University of Ghana, Legon-Accra, Ghana
6. Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.