1. University Hospital of Psychiatry; University of Bern; Bern Switzerland
2. Collaborative Antwerp Psychiatry Research Institute (CAPRI, UA); PC Alexian Brothers; Boechout Belgium
3. International Collaboration on ADHD and Substance Abuse (ICASA) Foundation; Utrecht the Netherlands
4. Amsterdam Institute for Addiction Research, Department of Psychiatry, Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
5. Alcohol Treatment Centre; Lausanne University Hospital CHUV; Lausanne Switzerland
6. Swiss Institute for the Prevention of Alcohol and Drug Problems; Lausanne Switzerland
7. Center for Addiction and Mental Health; Ontario Canada
8. University of the West of England; Bristol UK