1. Department of Surgery, School of Medicine Universidad de Antioquia/IPS Universitaria/Hospital Universitario San Vicente Fundación Medellín Colombia
2. CEXCA Centro de Excelencia en Enfermedades de Cabeza y Cuello/Clínica Las Vegas‐grupo Quirónsalud Medellín Colombia
3. Department of Surgery, School of Medicine Universidad Nacional de Colombia, Bogotá, Colombia‐Hospital Universitario Nacional de Colombia Bogotá Colombia
4. Head and Neck Surgery and Otorhinolaryngology Department A.C. Camargo Cancer Center São Paulo Brazil
5. Head and Neck Service, Department of Surgery Memorial Sloan Kettering Cancer Center New York USA
6. Department of Oncology, Radiotherapy and Plastic Surgery Sechenov University Moscow Russia
7. Director of the FPG Thyroid and Parathyroid Center, Division of Head and Neck Endocrine Surgery The Sarasota Memorial Health Care System Sarasota Florida USA
8. Department of Head and Neck Surgery The University of Texas M. D. Anderson Cancer Center Houston Texas USA
9. Department of Otorhinolaryngology Head and Neck Surgery Edinburgh Royal Infirmary Edinburgh UK
10. Thyroid/Parathyroid Endocrine Surgical Division, Thyroid Surgical Oncology Massachusetts Eye and Ear Infirmary, Harvard Medical School Boston Massachusetts USA
11. Department of Otorhinolaryngology‐Head and Neck Surgery Guy's and St Thomas' Hospital NHS Foundation Trust, King's College London London UK
12. Otorhinolaryngology Head and Neck Surgery University Hospitals Leuven Leuven Belgium
13. Department of Oncology, Section Head and Neck Oncology KU Leuven Leuven Belgium
14. University of Udine School of Medicine Udine Italy
15. Department of Otolaryngology and Head and Neck Surgery The University of Oklahoma College of Medicine Oklahoma City Oklahoma USA
16. Head and Neck Surgery and Oncology Unit, A.R.M. Center for Advanced Otolaryngology Head and Neck Surgery Assuta Medical Center Tel Aviv Israel
17. Department of Surgery and MacLean Center for Clinical Medical Ethics The University of Chicago Chicago Illinois USA
18. Department of Otorhinolaryngology‐Head and Neck Surgery University of Helsinki and Helsinki University Hospital Helsinki Finland
19. Department of Otolaryngology Hospital Universitario Central de Asturias‐ISPA Oviedo Spain
20. University of Oviedo‐IUOPA Oviedo Spain
21. Head and Neck Cancer Unit CIBERONC Madrid Spain
22. Department of Otolaryngology‐Head and Neck Surgery Institut Gustave Roussy Villejuif Cedex France
23. Laboratoire de Phonétique et de Phonologie Paris France
24. Department of Head and Neck Surgery University of São Paulo Medical School São Paulo Brazil
25. Coordinator of International Head and Neck Scientific Group Padua Italy