1. Department of Clinical Science University of Bergen, Bergen, Norway; Department of Health Promotion Norwegian Institute of Public Health, Bergen, Norway
2. Department of Health Promotion Norwegian Institute of Public Health, Bergen, Norway
3. Center for Disease Burden Norwegian Institute of Public Health, Bergen, Norway;
4. Department of Global Public Health and Primary Care University of Bergen, Norway
5. Department of Clinical Psychology University of Bergen, Bergen, Norway;
6. Clinical Psychologist Private practice, Oslo, Norway
7. Associate Director TNS Gallup, Oslo, Norway
8. Center for Alcohol & Drug Research Stavanger University Hospital, Stavanger, Norway