1. British Columbia Centre on Substance Use Vancouver Canada
2. School of Population and Public Health, University of British Columbia Vancouver Canada
3. Department of MedicineUniversity of British Columbia, St. Paul′s Hospital Vancouver Canada
4. Department of MedicineUniversity of California San Diego La Jolla USA
5. International Centre for Science in Drug Policy, St. Michael′s Hospital Toronto Canada
6. Department of Community Health SciencesCumming School of Medicine, University of Calgary Calgary Canada
7. Institute for Mental Health Policy Research, Centre for Addiction and Mental Health (CAMH) Toronto Canada
8. Department of PsychiatryUniversity of Toronto Toronto Canada
9. Institute of Medical Science (IMS), University of Toronto Toronto Canada
10. Centre for Criminology and Sociolegal Studies, University of Toronto Toronto Canada
11. Centre for Applied Research in Mental Health and Addiction (CARMHA), Faculty of Health Sciences, Simon Fraser University Vancouver Canada
12. Alcohol, Tobacco, Cannabis and Gambling Policy and Prevention, British Columbia Ministry of Health Victoria Canada
13. Department of PsychologyUniversity of British Columbia Kelowna Canada
14. Departments of Family Medicine and AnesthesiaMcGill University Montréal Canada