1. Department of Otolaryngology, Hospital Universitario Central de Asturias, University of Oviedo, ISPA, IUOPA, CIBERONC, Oviedo, Spain
2. Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
3. Departments of Surgery and Otolaryngology-Head and Neck Surgery, Albert Einstein College of Medicine, Bronx, NY, USA
4. Department of Medical Biology and Pathology, Institut Gustave Roussy, Villejuif, France
5. Department of Medical Oncology, Amsterdam Center for Endocrine and Neuro Endocrine Tumors (ACcENT), Amsterdam UMC location Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, Netherlands
6. Division of Medicine, Mayo Clinic School of Medicine, Jacksonville, FL, USA
7. Department of Surgery and MacLean Center for Clinical Medical Ethics, The University of Chicago, Chicago, IL, USA
8. Department of Radiation Oncology, College of Medicine, University of Florida, Gainesville, FL, USA
9. Otorhinolaryngology-Head and Neck Surgery Unit, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, ASST Spedali Civili, Brescia, Italy
10. Department of Otorhinolaryngology, Mayo Clinic, Rochester, MN, USA
11. Department Radiation Oncology, GenesisCare St Vincent’s Hospital, Melbourne, Australia
12. FPG Thyroid and Parathyroid Center, Division of Head and Neck Endocrine Surgery, The Sarasota Memorial Health Care System, Sarasota, FL, USA
13. Department of Surgery, Universidad de Antioquia, CEXCA Centro de Excelencia en Enfermedades de Cabeza y cuello, Medellín, Colombia
14. Laboratory of Experimental Radiotherapy, Department of Oncology, University of Leuven, Belgium
15. Department of Radiation Oncology, Leuven Cancer Institute, University Hospitals Leuven, Leuven, Belgium
16. Department of Otolaryngology-Head and Neck Surgery, Louisiana State University-Health Shreveport, Shreveport, LA, USA
17. Department of Oncology, Section Head and Neck Oncology, KU Leuven, Leuven, Belgium
18. Otorhinolaryngology, Head and Neck Surgery, University Hospitals Leuven, Leuven Cancer Institute, Leuven, Belgium
19. Head and Neck Surgery Section, Instituto Nacional do Câncer (INCA), Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
20. Instituto de Investigación Sanitaria del Principado de Asturias, IUOPA, CIBERONC, Oviedo, Spain
21. Department of Hematology and Medical Oncology, The Winship Cancer Institute of Emory University, Atlanta, GA, USA
22. Cancer Center Amsterdam, Department of Radiology and Nuclear Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
23. Department of Pathology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
24. University of Udine School of Medicine, Udine, Italy
25. Coordinator of the International Head Neck Scientific Group, Padua, Italy