Affiliation: | 1. Faculty of Medicine, Department of Otorhinolaryngology, Suez Canal University Teaching Hospitals, Ismailia, Egypt;2. Head and Neck Department – ENT & Oral Surgery Unit, G.B. Morgagni ‐ L. Pierantoni Hospital, Forlì ‐ ASL of Romagna, Italy;3. Department of Otorhinolaryngology, University of Messina, Messina, Italy;4. ENT & Audiology Department, University of Ferrara, Ferrara, Italy |