1. Department of Surgery, Faculty of MedicineUniversity of British Columbia Vancouver British Columbia Canada
2. Department of Radiation OncologyBritish Columbia Cancer – Vancouver Centre Vancouver British Columbia Canada
3. Department of Otolaryngology, Faculty of MedicineUniversity of British Columbia Vancouver British Columbia Canada
4. Department of Radiation OncologyBritish Columbia Cancer – Centre for the North Prince George British Columbia Canada
5. Cancer Surveillance and Outcomes, Population OncologyBC Cancer Prince George British Columbia Canada
6. Faculty of MedicineUniversity of British Columbia Vancouver British Columbia Canada