1. Department of Health and Care Sciences The Arctic University of Norway Tromsø Norway
2. Division of Neurosciences, Orthopedics and Rehabilitation Services University Hospital of North Norway Tromsø Norway
3. Department of Health and Care Sciences Finnmark Hospital Trust, Alta Norway
4. Department of Clinical Research University Hospital of North Norway, Tromsø, Norway, and Department of Health and Care Sciences, The Arctic University of Norway Tromsø Norway
5. Department of Community Medicine The Arctic University of Norway Tromsø Norway
6. Department of Microbiology and Infection Control Division of Internal Medicine University Hospital of North Norway Tromsø Norway
7. Division of Internal Medicine University Hospital of North Norway, Tromsø, Norway, and Endocrine Research Group, Department of Clinical Medicine, The Arctic University of Norway Tromsø Norway
8. MRC Lifecourse Epidemiology Unit, Southampton UK and Victoria University Wellington New Zealand