1. Baylor College of Medicine; Houston Texas
2. Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
3. Department of Clinical Oncology and Nuclear Medicine; Faculty of Medicine, Alexandria University; Alexandria Egypt
4. Bobby R. Alford Department of Otolaryngology Head and Neck Surgery; Baylor College of Medicine; Houston Texas
5. Department of Head and Neck Surgery; The University of Texas MD Anderson Cancer Center; Houston Texas
6. Department of Endocrine Neoplasia and Hormonal Disorders; The University of Texas MD Anderson Cancer Center; Houston Texas
7. Department of Pathology; The University of Texas MD Anderson Cancer Center; Houston Texas
8. Department of Surgery; Abington Hospital-Jefferson Health; Abington Pennsylvania
9. Department of Thoracic/Head and Neck Medical Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas