1. Department of Otorhinolaryngology–Head and Neck Surgery, IRCCS Azienda Ospedaliero‐Universitaria di Bologna Policlinico S. Orsola‐Malpighi Bologna Italy
2. Department of Specialist, Diagnostic and Experimental Medicine (DIMES), Alma Mater Studiorum Università di Bologna Bologna Italy
3. Otorhinolaryngology–Head and Neck Surgery Department University Hospital of Modena Modena Italy
4. Otorhinolaryngology and Head and Neck Surgery Unit, ASST Bergamo Ovest Treviglio‐Caravaggio Hospital Treviglio Italy