1. Department of Infectious Diseases, Medical clinic, University Hospital of North Norway, Tromso, Norway
2. Department of Community Medicine, University of Tromsø – The Arctic University of Norway, Tromso, Norway
3. Division of Health Services, Norwegian Institute of Public Health, Oslo, Norway
4. Department of Internal Medicine, Hospital of Southern Norway, Kristiansand, Norway
5. Department of Mental Health and Substance Abuse, University Hospital of North Norway, Tromso, Norway
6. Institute for Clinical Medicine, University of Tromsø – The Arctic University of Norway, Tromso, Norway
7. Department of Psychosomatic and Trauma, Hospital of Southern Norway, Kristiansand, Norway