1. Centre for Sami Health Research, Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
2. Norwegian Institute of Public Health Nydalen, Oslo, Norway
3. Department of Community MedicineFaculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
4. Department of MedicineUniversity Hospital of Northern Norway, Harstad, Norway