1. Head and Neck Cancer Medical Oncology 3 Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
2. Evaluative Epidemiology, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
3. Diagnostic Pathology and Laboratory Medicine Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
4. Radiology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
5. Radiotherapy Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
6. Head and Neck Surgery Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
7. University of Milan, Milan, Italy