Otorhinolaryngology Department, Faculty of Medicine, Tanta University, Tanta, Egypt. Otorhinolaryngology Department, Faculty of Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt. Department of Neuroscience, Mental Health and Sensory Organs, Sant Andrea University Hospital, Faculty of Medicine and Psychology, Sapienza University, Italy. Otorhinolaryngology Department, Faculty of Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt. Electronic address: Hitham_elfrargy@med.kfs.edu.eg.