1. Department of Head and Neck Surgery The University of Texas MD Anderson Cancer Center Houston Texas USA
2. Department of Oncology Sidney Kimmel Comprehensive Cancer Center Johns Hopkins University Baltimore Maryland USA
3. Department of Radiation Oncology Dana‐Farber/Brigham & Women’s Cancer Center Harvard Medical School Boston Massachusetts USA
4. Department of Pathology The University of Texas MD Anderson Cancer Center Houston Texas USA
5. Department of Plastic Surgery The University of Texas MD Anderson Cancer Center Houston Texas USA