1. Research Center for Vitamins and Vaccines (CVIVA), Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark
2. Research Center for Vitamins and Vaccines (CVIVA), Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark2Institute of Clinical Research, University of Southern Denmark, and Odense University Hospital, Odense, Denmark3Bandim Health Project, IN
3. Child and Adolescent Clinic, Rigshospitalet, Copenhagen, Denmark
4. Department of Infectious Disease Epidemiology, Statens Serum Institut, Copenhagen, Denmark
5. Research Center for Vitamins and Vaccines (CVIVA), Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark3Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau