Reply to N. Hirshoren et al and D. Chakrabarti et al

Stephen Y Lai¹, Robert L Ferris¹

• ¹Stephen Y. Lai, MD, PhD, Departments of Head and Neck Surgery, Molecular and Cellular Oncology, and Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX and Robert L. Ferris, MD, PhD, Departments of Otolaryngology, Immunology, and Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA.