1. Centre for Arctic Health and Molecular Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
2. Perinatal Epidemiology Research Unit, Aarhus University Hospital, Skejby, Denmark
3. Department of Pediatrics, Aarhus University Hospital, Skejby, Denmark
4. Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
5. Greenland Centre for Health Research, Institute of Nursing and Health Sciences, University of Greenland, Nuuk, Greenland