1. Institut de Recherche en Sciences de la Santé (IRSS) Ouagadougou Burkina Faso
2. Institut Africain de Santé Publique (IASP) Ouagadougou Burkina Faso
3. Family Health Division, Ghana Health Service Accra Ghana
4. Tema General Hospital Tema Ghana
5. Greater Accra Regional Hospital Accra Ghana
6. Reproductive, Maternal and Newborn Health, World Health Organization Accra Ghana
7. Reproductive, Maternal Health and Ageing, WHO Regional Office for Africa Brazzaville Congo
8. Reproductive, Maternal Health and Ageing, WHO IST Office for Central Africa Libreville Gabon