1. Otolaryngology and Audiology Unit IRCCS Azienda Ospedaliero‐Universitaria Policlinico di Sant'Orsola Bologna Italy
2. Department of Experimental, Diagnostic and Specialty Medicine ‐ DIMES Alma Mater Studiorum University Bologna Italy
3. Department of Otolaryngology ‐ Head and Neck Surgery Azienda Ospedaliero‐Universitaria Policlinico di Modena, University of Modena and Reggio Emilia Modena Italy