1. Department of clinical psychology, Faculty of Psychology, University of Bergen, Bergen, Norway
2. Department of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway
3. Alcohol & Drug Research Western Norway, Stavanger University Hospital, Stavanger, Norway
4. Centre for Evaluation of Public Health Measures, Norwegian Institute of Public Health, Oslo, Norway
5. Department of Psychosocial Science, Faculty of Psychology, University of Bergen, Bergen, Norway
6. NUBU, The Norwegian Center for Child Behavioral Development, Oslo, Norway
7. Department of Health Promotion and Development, Faculty of Psychology, University of Bergen, Bergen, Norway
8. Department of Health Promotion and Development, NLA University College, Bergen, Norway
9. Department of Global Public Health and Primary Care, Faculty of medicine, University of Bergen, Bergen, Norway
10. Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway