1. Department of Social StudiesFaculty of Social Sciences, University of Stavanger Stavanger Norway
2. Department of PsychiatryDistrict General Hospital of Førde Førde Norway
3. Centre for Alcohol and Drug ResearchStavanger University Hospital Stavanger Norway
4. Department of PsychiatryPerelman School of Medicine, University of Pennsylvania Philadelphia USA
5. Centre for the Study of the Sciences and the HumanitiesUniversity of Bergen Bergen Norway
6. Department of Public HealthFaculty of Health Sciences Stavanger Norway