1. Department of Head and Neck Surgery, Division of Surgery; The University of Texas MD Anderson Cancer Center; Houston Texas
2. Department of Otolaryngology - Head and Neck Surgery; Baylor College of Medicine; Houston Texas
3. Department of Radiation Oncology, Division of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
4. Department of Pathology, Division of Pathology and Laboratory Medicine; The University of Texas MD Anderson Cancer Center; Houston Texas