1. Otorhinolaryngology Unit IRCCS Humanitas Clinical and Research Center Via Manzoni 56 Rozzano (MI) Italy
2. Department of Biomedical Sciences Humanitas University Via Rita Levi Montalcini 4 Pieve Emanuele (MI) Italy
3. Department of Otorhinolaryngology ‐ Head and Neck Surgery Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico Milan Italy
4. Department of Otolaryngology ‐ Head and Neck Surgery IRCCS Regina Elena National Cancer Institute Rome Italy