1. Institut de Recherche en Sciences de la Santé (IRSS) Ouagadougou Burkina Faso
2. Institut Africain de Santé Publique (IASP) Ouagadougou Burkina Faso
3. Reproductive, Maternal Health and Ageing WHO Regional Office for Africa Brazzaville Congo
4. Reproductive, Maternal Health and Ageing WHO IST Office for Central Africa Libreville Gabon