1. Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau
2. Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, University of Southern Denmark, Denmark
3. OPEN, Odense Patient data Explorative Network, Odense University Hospital/Institute of Clinical Research, University of Southern Denmark, Denmark
4. Centre de Recherche en Santé de Nouna, INDEPTH Network, Nouna, Burkina Faso
5. Institute of Public Health, Ruprecht-Karls-University, Heidelberg, Germany
6. INDEPTH Network, Accra, Ghana
7. School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
8. College of Medicine and Allied Health Sciences, University of Sierra Leone, Freetown, Sierra Leone
9. University Medical Center Hamburg-Eppendorf, Institute of Medical Biometry and Epidemiology, Germany
10. London School of Hygiene and Tropical Medicine, United Kingdom
11. National Institute of Public Health and the Environment, Bilthoven, The Netherlands