1. Otolaryngology Department San Giovanni‐Addolorata Hospital Rome Italy
2. Department of Otorhinolaryngology University Hospital “San Giovanni di Dio e Ruggi d'Aragona” Salerno Italy
3. Neurosurgery Unit, Department of Medicine, Surgery and Dentistry University Hospital “San Giovanni di Dio e Ruggi d'Aragona” University of Salerno Salerno Italy