1. Department of Radiology Helse Møre og Romsdal Molde Sjukehus Molde Norway
2. Research Unit for General Practice Department of Community Medicine UiT The Arctic University of Norway Tromsø Norway
3. Department of Paediatrics Finnmark Hospital Trust Hammerfest Norway
4. Paediatric Research Group Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway