1. Centre for Social Research on Alcohol and Drugs (SoRAD); Stockholm University; Stockholm Sweden
2. IFT Institut für Therapieforschung; München Germany
3. The Norwegian Institute for Alcohol and Drug Research (SIRUS); Oslo Norway
4. The National Institute for Health and Welfare (THL); Helsinki Finland
5. The Finnish Foundation for Alcohol Studies; Helsinki Finland
6. Institut national des études démographiques (INED); Paris France
7. INSERM; U669 Paris France
8. University Paris-Sud and University Paris Descartes; UMR-S0669 Paris France
9. Centre for Alcohol and Drug Research; Aarhus University; Copenhagen Denmark
10. The Swedish Council for Information on Alcohol and Other Drugs (CAN); Stockholm Sweden
11. Centre for Psychiatry Research, Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden