1. Department of Emergency Medicine, Cape Breton Regional Hospital, Sydney, Canada.
2. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
3. Takemi Program in International Health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, USA.
4. Department of Family and Community Medicine, North York General Hospital, North York, Canada.
5. Department of Family and Community Medicine, Temerty Faculty of Medicine, Toronto, Canada.