1. Department of Otolaryngology—Head and Neck Surgery, University of Toronto, Toronto, ON, Canada
2. Faculty of Medicine, University of Toronto, Toronto, ON, Canada
3. Department of Biostatistics, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
4. Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
5. Department of Radiation Oncology, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
6. Department of Otolaryngology—Head and Neck Surgery, Sinai Health System, University of Toronto, Toronto, ON, Canada
7. Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
8. Department of Otolaryngology—Head and Neck Surgery, University Health Network, University of Toronto, Toronto, ON, Canada