1. ENT Unit, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60121 Ancona, Italy
2. Unit of Audiology, Regional Centre of Cochlear Implants and ENT Diseases, Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
3. Department of Medicine and Surgery, University of Salerno, 84084 Fisciano, Italy
4. Indipendent Researcher, 75100 Matera, Italy