Affiliation: | 1. McMaster University, Hamilton, Canada 2. Departments of Community Health Sciences and Psychiatry, Faculty of Medicine, University of Manitoba, S113-750 Bannatyne Avenue, Winnipeg, MB, R3E 0W3, Canada 3. West Virginia University, Morgantown, USA 4. University of Toronto, Toronto, Canada 5. University of Alberta, Edmonton, Canada 6. Public Health Agency of Canada, Ottawa, Canada
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