1. Institute of Health and Society; Newcastle University; Newcastle UK
2. Department of Family Medicine; Maastricht University; Maastricht the Netherlands
3. Department of Medical Specialist and Department of Medicine and Health; Linköping University; Motala Sweden
4. Department of Social Medicine; University of Gothenburg; Gothenburg Sweden
5. Institut Clínic de Neurosciences; Hospital Clínic de Barcelona; Barcelona Spain
6. National Addiction Centre; Institute of Psychiatry, King's College London; London UK
7. National Institute for Health Research Biomedical Research Centre for Mental Health; South London and Maudsley NHS Foundation Trust; London UK
8. Program on Substance Abuse, Public Health Agency; Government of Catalonia; Barcelona Spain
9. Radboud University Medical Center; Radboud Institute for Health Sciences, Scientific Institute for Quality of Healthcare (IQ healthcare); Nijmegen the Netherlands
10. Department of Psychiatry; Medical University of Warsaw; Warsaw Poland
11. Independent Laboratory of Family Physician Education; Pomeranian Medical University; Szczecin Poland
12. Research Department of Primary Care and Population Health; University College London; London UK
13. State Agency for Prevention of Alcohol-Related Problems; Warsaw Poland
14. HAN University of Applied Sciences; Faculty of Health and Social Studies; Nijmegen the Netherlands
15. Centre for Health Service Studies; University of Kent; Canterbury UK