1. Department of Otolaryngology, Hospital Universitario Central de Asturias, University of Oviedo, ISPA, IUOPA, CIBERONC, 33011 Oviedo, Spain
2. Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
3. Department of Surgery and Otolaryngology, Head and Neck Surgery, Edinburgh University, Edinburgh EH3 9YL, UK
4. Department of Otolaryngology-Head and Neck Surgery, Institut Gustave Roussy, CEDEX, 94805 Villejuif, France
5. Laboratoire de Phonétique et de Phonologie, 75005 Paris, France
6. Department of Otolaryngology-Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL 32952, USA
7. Head and Neck Surgery and Otorhinolaryngology Department, A C Camargo Cancer Center, São Paulo 01509-001, Brazil
8. Department of Otorhinolaryngology, Head and Neck Surgery, Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, FI-00014 Helsinki, Finland
9. Department of Head and Neck Surgery, UC Louvain, St Luc University Hospital and King Albert II Cancer Institute, 1200 Brussels, Belgium
10. Department of Hematology and Medical Oncology, The Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
11. Laboratory of Experimental Radiotherapy, Department of Oncology, Leuven Cancer Institute, University Hospitals Leuven, 3000 Leuven, Belgium
12. Department of Radiation Oncology, Leuven Cancer Institute, University Hospitals Leuven, 3000 Leuven, Belgium
13. ENT Unit, Policlinico Città di Udine, 33100 Udine, Italy
14. Coordinator of the International Head and Neck Scientific Group, 35100 Padua, Italy