1. Department of Otolaryngology—Head and Neck Surgery The Pennsylvania State University, College of Medicine Hershey Pennsylvania USA
2. Department of Otolaryngology—Head and Neck Surgery University of Texas Southwestern Medical Center Dallas Texas USA
3. Department of Surgery Cedars Sinai Los Angeles California USA
4. City of Hope California Duarte USA
5. Ear, Nose and Throat Center George Washington University Washington District of Columbia USA
6. Department of Otolaryngology—Head and Neck Surgery Medical University of South Carolina Charleston South Carolina USA
7. Department of Otolaryngology Beth Israel Deaconess Boston Massachusetts USA
8. Department of Radiation Oncology and Molecular Radiation Sciences Johns Hopkins Medicine Baltimore Maryland USA
9. Head and Neck Institute Cleveland Clinic Cleveland Ohio USA
10. Department of Otolaryngology University of Rochester Medical Center Rochester New York USA
11. Department of Head and Neck Surgical Oncology, Methodist Estabrook Cancer Center Nebraska Methodist Hospital Omaha Nebraska USA
12. Department of Otolaryngology University of Pittsburgh Pittsburgh Pennsylvania USA
13. Department of Medical Oncology University of California San Diego La Jolla California USA
14. Department of Otolaryngology—Head and Neck Surgery Baylor College of Medicine Houston Texas USA
15. Department of Otolaryngology—Head and Neck Surgery Henry Ford Health System Detroit Michigan USA
16. Department of Otolaryngology–Head and Neck Surgery Massachusetts Eye and Ear Boston Massachusetts USA
17. Department of Otolaryngology—Head and Neck Surgery University of California Davis Davis California USA
18. Department of Otolaryngology—Head and Neck Surgery Louisiana State University Shreveport Louisiana USA
19. Department of Otolaryngology—Head and Neck Surgery Johns Hopkins School of Medicine Baltimore Maryland USA
20. Department of Surgery, Section of Otolaryngology—Head and Neck Surgery University of Chicago Pritzker School of Medicine Chicago Illinois USA