1. Department of Otorhinolaryngology and Maxillofacial Surgery, IRCCS Research Hospital Casa Sollievo della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy
2. Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Foggia, 71013 Foggia, Italy
3. Department of Specialistic, Diagnostic and Experimental Medicine (DIMES), Alma Mater Studiorum University of Bologna, 40131 Bologna, Italy
4. Department of Pulmonology and Intensive Respiratory Therapy, University Hospital S. Orsola-Malpighi, 40126 Bologna, Italy
5. Department of Clinical and Experimental Medicine, Dental School of Foggia, University of Foggia, 71013 Foggia, Italy