1. Centre of Interdisciplinary Addiction Research (ZIS) University Medical Center Hamburg‐Eppendorf (UKE) Hamburg Germany
2. Department of Psychiatry, Medical Faculty University of Leipzig Leipzig Germany
3. Department of Finance, Operations and Information Systems Brock University St Catharines Canada
4. Institute of Public Health and Nursing Research, Department for Health and Society University of Bremen Bremen Germany
5. Bruyère Research Institute Ottawa Canada
6. Department of Family Medicine University of Ottawa Ottawa Canada
7. Price School of Public Policy and Leonard D. Schaeffer Center for Health Policy and Economics University of Southern California California Los Angeles USA
8. Department of Social Sciences Universidad Católica del Uruguay Montevideo Uruguay
9. Institute for Mental Health Policy Research Centre for Addiction and Mental Health Toronto Canada
10. World Health Organization/Pan American Health Organization Collaborating Centre Centre for Addiction and Mental Health Toronto Canada
11. Campbell Family Mental Health Research Institute Centre for Addiction and Mental Health Toronto Canada
12. Centre of Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy University Medical Center Hamburg‐Eppendorf (UKE) Hamburg Germany
13. Dalla Lana School of Public Health University of Toronto Toronto Canada
14. Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Düsseldorf Heinrich‐Heine‐University Düsseldorf Germany
15. Addiction Suisse Lausanne Switzerland