1. Department of Otolaryngology - Head and Neck Surgery; Uludag University School of Medicine; Bursa Turkey
2. Department of Radiation Oncology; University of Florida; Gainesville Florida
3. University of Udine School of Medicine; Udine Italy
4. Department of Otolaryngology, Hospital Universitario Central de Asturias, IUOPA; University of Oviedo, Centro de Investigación Biomédica en Red de Cancer (CIBERONC); Oviedo Spain
5. Instituto de Investigación Sanitaria del Principado de Asturias and Centro de Investigación Biomédica en Red de Cancer (CIBERONC); ISCIII; Oviedo Spain
6. Instituto Universitario de Oncología del Principado de Asturias; University of Oviedo; Oviedo Spain
7. Department of Radiation Oncology; Institute of Oncology; Ljubljana Slovenia
8. Department of Hematology and Medical Oncology; The Winship Cancer Institute of Emory University; Atlanta Georgia
9. Head and Neck Service; Memorial Sloan Kettering Cancer Center; New York New York
10. Department of Radiation Oncology; The Prince of Wales Cancer Centre; Sydney New South Wales Australia
11. Department of Otolaryngology - Head and Neck Surgery; Radboud University Medical Center; Nijmegen The Netherlands
12. Coordinator of the International Head and Neck Scientific Group