1. Bandim Health Project, Indepth Network, Bissau Codex, Guinea-Bissau
2. Research Center for Vitamins and Vaccines (CVIVA), Statens Serum Institut, Copenhagen S, Denmark
3. OPEN, Odense Patient data Explorative Network, Odense University Hospital/Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
4. Department of Public Health, Centre for Global Health, Aarhus University, Aarhus, Denmark
5. Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK