1. Ontario Health (Cancer Care Ontario), Toronto, Ontario, Canada
2. Canadian Centre for Applied Research in Cancer Control, Toronto, Ontario, Canada
3. Division of Medical Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
4. Hematology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
5. Department of Otolaryngology–Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
6. Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
7. Department of Medical Oncology & Hematology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
8. Department of Medicine, University of Toronto, Toronto, Ontario, Canada
9. Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada
10. Division of Medical Oncology, RS McLaughlin Durham Regional Cancer Centre Lakeridge Health, Oshawa, Ontario, Canada