1. Action against Hunger, C/Duque de Sevilla no. 3, 28002 Madrid, Spain
2. EPINUT Research Group (Ref. 920325), Unit of Physical Anthropology, Department of Biodiversity, Ecology, Faculty of Biological Sciences, and Evolution, Complutense University of Madrid, 28040 Madrid, Spain
3. Action against Hunger, Niamey BP 11491, Niger
4. Action against Hunger, West and Central Africa Regional, Dakar BP 29621, Senegal
5. Nutrition Direction, Ministry of Health, Niamey BP 623, Niger
6. Centre de Recherche Médicale et Sanitaire (CERMES), Niamey BP 10887, Niger
7. United Nations International Children’s Emergency Fund—UNICEF, 3 United Nations Plaza, New York, NY 10017, USA