University of Texas at Houston - MD Anderson Cancer Center, Harvard University - Massachusetts General Hospital, The University of Texas MD Anderson Cancer Center - Department of Biostatistics, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, Mayo Clinic, University of Alabama at Birmingham, Mayo Clinic - Department of Radiation Oncology, University of Maryland, College Park, Memorial Sloan Kettering Cancer Center - Department of Radiation Oncology, University of Washington, University of Alabama at Birmingham, Miami Cancer Center, University of Pennsylvania, Northwestern University - Feinberg School of Medicine, University of Oklahoma, Karmanos Cancer Institute, Inova Health System, Willis-Knighton Cancer Center, University of Florida, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - MD Anderson Cancer Center, University of Texas at Houston - Department of Head and Neck Surgery, University of Texas at Houston - MD Anderson Cancer Center, University of Washington, Harvard University - Massachusetts General Hospital, University of Texas at Houston - MD Anderson Cancer Center and Mayo Clinic - Department of Radiation Oncology

University of Toronto - Department of Radiation Oncology, University of Toronto - Department of Biostatistics, Cleveland Clinic - Department of Radiation Oncology, Mayo Clinic - Department of Radiation Oncology, Maastricht University - Department of Radiation Oncology (MAASTRO), University of Toronto - Princess Margaret Cancer Centre, University of Toronto - Princess Margaret Cancer Centre, University of Toronto - Princess Margaret Cancer Centre, Cleveland Clinic - Imaging Institute, Cleveland Clinic - Imaging Institute, Cleveland Clinic - Department of Radiation Oncology, Cleveland Clinic - Department of Radiation Oncology, Mayo Clinic - Department of Radiology, Mayo Clinic - Department of Radiation Oncology, Mayo Clinic Hospital - Phoenix - Department of Otolaryngology-Head and Neck Surgery, Maastricht University - Department of Radiology and Nuclear Medicine, Maastricht University - Department of Radiology and Nuclear Medicine, Maastricht University - GROW School for Oncology and Developmental Biology, Creighton University - Department of Surgery, Memorial Sloan Kettering Cancer Center, University of Toronto - Department of Biostatistics and University of Toronto

Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic - Department of Oncology, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic - Department of Radiation Oncology, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic, Mayo Clinic and Mayo Clinic

affiliation not provided to SSRN, Mayo Clinic, affiliation not provided to SSRN, Mayo Clinic - Arizona, affiliation not provided to SSRN, affiliation not provided to SSRN, Mayo Clinic, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Mayo Clinic - Department of Radiation Oncology, Mayo Clinic and Mayo Clinic