1. Department of Surgery, School of Medicine, Universidad de Antioquia, Fundación Colombiana de Cancerología–Clínica Vida, Medellin, Colombia
2. Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, Sao Paulo, Brazil
3. Ear, Nose and Throat Department, NHS Lothian, Edinburgh, United Kingdom
4. Department of Surgery and MacLean Center for Clinical Ethics, University of Chicago Medicine, Chicago, Illinois
5. Head & Neck Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
6. Division of Metabolic, Endocrine and Minimally Invasive Surgery, Department of Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
7. Instituto de Investigacion Sanitaria del Principado de Asturias, University of Oviedo, Fundación de Investigación e Innovación Biosanitaria del Principado de Asturias, Oviedo, Spain
8. Ear, Nose, and Throat Section, University of Udine School of Medicine, Udine, Italy
9. Coordinator of the International Head and Neck Scientific Group, Padua, Italy