1. SUNY Downstate Health Sciences University, Brooklyn, NY
2. Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Odette Cancer Centre, Toronto, ON, Canada
3. Department of Supportive Care, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
4. Department of Radiation Oncology and the Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
5. Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
6. Department of Otolaryngology Head and Neck Surgery, University Health Network, Toronto, ON, Canada
7. Department of Radiation Oncology, University of Washington School of Medicine, Seattle, WA
8. Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
9. Upper Canada College, Toronto, ON, Canada