1. Head and Neck Surgery, Hospital Universitario Central de Asturias (HUCA), 33011 Oviedo, Spain
2. Instituto Universitario de Oncología del Principado de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias, University of Oviedo, CIBERONC, 330011 Oviedo, Spain
3. Department of Biology and Pathology, Gustave Roussy Cancer Campus, University Paris-Saclay, 91190 Villejuif, France
4. Department of Head and Neck Surgery, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA
5. Otorhinolaryngology Head and Neck Surgery and Department of Oncology, Section Head and Neck Oncology, University Hospitals Leuven, 3000 Leuven, Belgium
6. European Reference Network for Rare Adult Solid Cancers (EURACAN), 69008 Lyon, France
7. Department of Otolaryngology-Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL 62702, USA
8. Department of Head and Neck Surgery, UC Louvain, St Luc University Hospital and King Albert II Cancer Institute, 1200 Brussels, Belgium
9. Department of Otorhinolaryngology Head and Neck Surgery, NHS Lothian, Edinburgh EH1 3EG, UK
10. FPG Thyroid and Parathyroid Center, Division of Head and Neck Endocrine Surgery, The Sarasota Memorial Health Care System, Sarasota, FL 34239, USA
11. Division of Otolaryngology-Endocrine Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Harvard University, Boston, MA 02138, USA
12. Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, ON M5S, Canada
13. Department of Surgery and MacLean Center for Clinical Medical Ethics, The University of Chicago, Chicago, IL 60637, USA
14. A.R.M. Center of Otolaryngology-Head and Neck Surgery, Assuta Medical Center, Affiliated with Ben-Gurion University of the Negev, Tel Aviv 8410501, Israel
15. Department of Otolaryngology—Head and Neck Surgery, Galilee Medical Center, Affiliated with Azrieli Faculty of Medicine, Bar Ilan University, Safed 5290002, Israel
16. Department of Surgery, Universidad de Antioquia, CEXCA Centro de Excelencia en Enfermedades de Cabeza y Cuello, Medellín 050021, Colombia
17. Department of Head and Neck Surgery, Sydney Head and Neck Cancer Institute, Chris O’Brien Lifehouse, Sydney, NSW 2050, Australia
18. Faculty of Medicine and Health Sciences, Sydney Medical School, The University of Sydney, Sydney, NSW 2006, Australia
19. Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Sydney, NSW 2050, Australia
20. Department of Otorhinolaryngology-Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, FI-00029 Helsinki, Finland
21. Department of Head and Neck Surgery, University of Sao Paulo Medical School, Sao Paulo 01246-903, Brazil
22. Department of Head and Neck Surgery and Otorhinolaryngology, AC Camargo Cancer Center, Sao Paulo 01509-001, Brazil
23. School of Medicine, University of Udine, 33100 Udine, Italy
24. Coordinator of International Head and Neck Scientific Group, 35125 Padua, Italy