1. Department of Health Promotion Norwegian Institute of Public Health Bergen Norway
2. Department of Health Promotion and Development University of Bergen Bergen Norway
3. Centre for Evaluation of Public Health Measures Norwegian Institute of Public Health Oslo Norway
4. Alcohol and Drug Research Western Norway Stavanger University Hospital Stavanger Norway
5. Department of Psychosocial Science University of Bergen Bergen Norway
6. Faculty of Health Promotion, Sport and Leisure Studies University of Iceland Reykjavík Iceland
7. Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland
8. Department of Public Health and Community Medicine, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
9. Department of Learning, Informatics, Management, and Ethics Karolinska Institute Stockholm Sweden