1. Centre for Addiction and Mental Health, Institute for Mental Health Policy Research, Toronto, Canada
2. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
3. Mayo Clinic Alix School of Medicine, Rochester, Minnesota, USA
4. College of Medicine and Health, College Cork, Cork, Ireland
5. Public Health Agency of Canada, Ottawa, Canada
6. School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada