1. Department of Otolaryngology‐Head and Neck Surgery at the Lewis Katz School of Medicine Temple University Hospital Philadelphia Pennsylvania U.S.A.
2. Department of Radiation Oncology Fox Chase Cancer Center Philadelphia Pennsylvania U.S.A.
3. Department of Surgical Oncology Fox Chase Cancer Center Philadelphia Pennsylvania U.S.A.
4. Department of Medical Oncology Fox Chase Cancer Center Philadelphia Pennsylvania U.S.A.
5. Department of Head and Neck Surgery University of Texas, MD Anderson Cancer Center Houston Texas U.S.A.