1. Department of Otolaryngology–Head and Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre–University Health Network, University of Toronto, Toronto, Ontario, Canada
2. Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
3. Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
4. Department of Otolaryngology–Head and Neck Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
5. Department of Medical Oncology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
6. Department of Radiation Oncology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
7. Department of Otolaryngology–Head and Neck Surgery, Sinai Health System, University of Toronto, Toronto, Ontario, Canada