1. Department of Public Health, Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
2. Research Department, Stavanger University Hospital, Stavanger, Norway
3. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
4. Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
5. General Practice Research Unit (AFE), Department of General Practice, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
6. Preventive cardiology, Oslo University Hospital, Oslo, Norway
7. Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway