1. Institute of Clinical Psychology and Psychotherapy Technische Universität Dresden Dresden Germany
2. Institute for Mental Health Policy Research Centre for Addiction and Mental Health Toronto Ontario Canada
3. Dalla Lana School of Public Health University of Toronto Toronto Ontario Canada
4. Faculty of Medicine Institute of Medical Science University of Toronto Toronto Ontario Canada
5. Campbell Family Mental Health Research Institute Centre for Addiction and Mental Health Toronto Ontario Canada
6. Department of Global Public Health Karolinska Institute Stockholm Sweden
7. Department of Addictology First Faculty of Medicine and General University Hospital in Prague Charles University Praha Czech Republic
8. Clínic Foundation for Biomedical Research (FCRB) Barcelona Spain
9. Clinical Addictions Research Group (GRAC‐GRE) Psychiatry Department Neurosciences Institute Hospital Clínic University of Barcelona Barcelona Spain
10. Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Barcelona Spain
11. Norwegian Institute of Public Health Oslo Norway
12. Centre for Interdisciplinary Addiction Research University Medical Center Hamburg‐Eppendorf Hamburg Germany
13. Health Research Institute Faculty of Public Health Lithuanian University of Health Sciences Kaunas Lithuania
14. Department of Preventive Medicine Faculty of Public Health Lithuanian University of Health Sciences Kaunas Lithuania
15. Department of Psychiatry Medical Faculty University of Leipzig Leipzig Germany