1. Department of Otorhinolaryngology, Papardo Hospital, Messina, Italy
2. Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, Messina, Italy
3. Felippu Institute, São Paulo, Brazil
4. IRCCS Centro Neurolesi Bonino Pulejo, Messina, Italy
5. Villa Sofia-Cervello Hospital, Palermo, Italy