1. Department of Sense Organs Sapienza University of Rome Rome (RM) Italy
2. Azienda Ospedaliera Policlinico Umberto I Viale dell'Università Rome (RM) Italy
3. Department of Otorhinolaryngology, Severance Hospital Yonsei University College of Medicine Seoul Republic of Korea
4. Department of Otolaryngology and Head and Neck Surgery Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
5. Department of Clinical Sciences and Community Health University of Milan Milan Italy
6. Department of Biomedical Sciences Humanitas University Pieve Emanuele (MI) Italy
7. Otorhinolaryngology Unit IRCCS Humanitas Research Hospital Rozzano (MI) Italy
8. Department of Biomedical, Surgical and Dental Sciences University of Milan Milan Italy