1. Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
2. Department of Otolaryngology–Head & Neck Surgery, University of Toronto, Toronto, Ontario, Canada
3. Department of Otolaryngology–Head & Neck Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
4. Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada