1. Department of Otolaryngology - Head and Neck Surgery; New York University; New York New York
2. Department of Otolaryngology - Head and Neck Surgery, Department of Surgical Oncology, Princess Margaret Cancer Centre; University Health Network Toronto; Ontario Canada
3. Head and Neck Surgery Service, Department of Surgery; Memorial Sloan Kettering Cancer Center; New York New York
4. Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network; University of Toronto; Toronto Ontario Canada
5. Department of Radiation Oncology; Memorial Sloan-Kettering Cancer Center; New York New York
6. Department of Radiation Oncology, Princess Margaret Cancer Centre, University Health Network; University of Toronto; Toronto Ontario Canada