1. Department of Otolaryngology - Head and Neck Surgery, the Chaim Sheba Medical Center, Tel Hashomer, Israel and the Sackler School of Medicine; Tel Aviv University; Israel
2. Department of Otolaryngology - Head and Neck Surgery; Radboud University Medical Center; Nijmegen The Netherlands
3. Ear, Nose, and Throat Department, NHS Lothian, Lauriston Building, Lauriston Place; Edinburgh UK
4. Department of Otolaryngology, Hospital Universitario Central de Asturias, and Instituto Universitario de Oncología del Principado de Asturias; University of Oviedo; Oviedo Spain
5. Head and Neck Oncology Unit, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Madrid Spain
6. Department of Head and Neck Surgical Oncology, University Medical Center Utrecht Cancer Center; University Medical Center Utrecht; Utrecht The Netherlands
7. Head and Neck Service, Memorial Sloan Kettering Cancer Center; New York New York
8. Department of Otorhinolaryngology - Head and Neck Surgery; University of Groningen University Medical Center Groningen; Groningen The Netherlands
9. University of Udine School of Medicine; Udine Italy
10. Coordinator of the International Head and Neck Scientific Group