1. Centre for Sami Health Research, Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
2. Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
3. Tromsø Endocrine Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
4. Department of Medicine, University Hospital of North Norway, Harstad, Norway