1. Department of Adult and Development Age Human Pathology “Gaetano Barresi”, Unit of Otorhinolaryngology, University of Messina, 98125 Messina, Italy
2. Policlinico G. Martino, Via Consolare Valeria 1, 98125 Messina, Italy
3. Department of Integrated Dentistry, School of Dentistry, Universitat Internacional de Catalunya, Sant Cugat del Vallès, 08017 Barcelona, Spain