1. Department Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
2. Department of Sense Organs, Sapienza University of Rome, Rome, Italy
3. San Camillo Hospital IRCCS, Venice, Italy
4. Humanitas Clinical and Research Center, Via Alessandro Manzoni 56 20089 Rozzano, Italy
5. Department of Otolaryngology, University G. D’Annunzio of Chieti-Pescara, Chieti, Italy