1. Ontario Institute for Studies in Education, University of Toronto, Toronto, Canada
2. Department of Psychiatry, the Schulich School of Medicine and Dentistry, The University of Western Ontario in London, Ontario, Canada
3. Centre for Addiction and Mental Health, University of Toronto, Toronto, Canada
4. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
5. Arthur Sommer Rotenberg Chair in Suicide Studies, St. Michael's Hospital, University of Toronto, Toronto, Canada
6. Toronto Transit Commission, Toronto, Canada