1. Faculty of Medicine School of Health Sciences University of Iceland Reykjavik Iceland
2. Department of Neonatology Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm Sweden
3. Faculty for Food Science and Nutrition School of Health Science University of Iceland Reykjavik Iceland
4. Women's Clinic Landspitali – The National University Hospital of Iceland Reykjavik Iceland
5. Children's Hospital Iceland Landspitali – The National University Hospital of Iceland Reykjavik Iceland
6. Faculty of Pharmaceutical Sciences School of Health Science University of Iceland Reykjavik Iceland
7. Department of Genetics and Molecular Medicine Landspitali – The National University Hospital of Iceland Reykjavik Iceland
8. Center for Public Health Science School of Health Science University of Iceland Reykjavik Iceland
9. Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
10. Department of Epidemiology Harvard T H Chan School of Public Health Boston MA USA