1. Heidelberg Institute of Global Health, University of Heidelberg, Heidelberg, Germany
2. United Nations Children’s Fund (UNICEF) West and Central Africa Regional Office, Dakar, Senegal
3. UNICEF Area Representative for Gabon and São Tomé and Príncipe and to the ECCAS, Libreville, Gabon
4. Department of Economics and Centre for Modern Indian Studies, University of Göttingen, Göttingen, Germany