1. Institute for Mental Health Policy Research Centre for Addiction and Mental Health Toronto Ontario Canada
2. Dalla Lana School of Public Health University of Toronto Toronto Ontario Canada
3. Campbell Family Mental Health Research Institute Centre for Addiction and Mental Health Toronto Ontario Canada
4. Department of Psychiatry University of Toronto Toronto Ontario Canada
5. Institute of Medical Science University of Toronto Toronto Ontario Canada
6. Institute of Clinical Psychology and Psychotherapy and Center for Clinical Epidemiology and Longitudinal Studies Technische Universität Dresden Dresden Germany
7. Centre for Interdisciplinary Addiction Research Hamburg Germany
8. Department of Psychiatry, Medical Faculty University of Leipzig Leipzig Germany
9. Heidelberg Institute of Global Health Medical Faculty and University Hospital Heidelberg Germany