1. Department of Otolaryngology—Head & Neck Surgery, University of Toronto, Toronto, ON, Canada
2. Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
3. Department of Ophthalmology and Otolaryngology—Head and Neck Surgery, Université Laval, Quebec City, QC, Canada
4. Department of Otolaryngology—Head and Neck Surgery, Sunnybrook Health Sciences Centre and Michael Garron Hospital, Toronto, ON, Canada