1. Department of Medicine and Surgery, University of Salerno, Salerno, Italy;
2. Surgical Sciences Department, University of Turin, Turin, Italy;
3. ENT Unit, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy;
4. Unit of Audiology, Regional Centre for Cochlear Implants and ENT diseases, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy;
5. Department of Otorhinolaryngology, University Hospital ‘San Giovanni di Dio e Ruggi d’Aragona’, Salerno, Italy;
6. Department of Diagnostic Medicine, Clinical and Public Health, University Hospital of Modena, Modena, Italy;
7. Department of Sense Organs, Sapienza University Rome, Rome, Italy