1. Otorhinolaryngology Division, Department of Surgical Sciences, University of Turin, Turin, Italy
2. Radiation Oncology, Department of Oncology, University of Turin, Turin, Italy
3. Radiation Oncology, Department of Oncology, AOU Citta’ della Salute e della Scienza, Turin, Italy
4. Otorhinolaryngology Division, Maria Vittoria Hospital, Turin, Italy