∗Department of Otorhinolaryngology, Head and Neck Surgery, Mansoura University, Mansoura, Egypt

†Department of Otorhinolaryngology, Head and Neck Surgery, King Abdullah Medical City, Mecca, Saudi Arabia

‡Department of Otorhinolaryngology, Head and Neck Surgery, Kaferelsheikh university, Kaferelsheikh, Egypt

§Department of Otorhinolaryngology, Head and Neck Surgery, Tanta university, Tanta, Egypt

∥Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt

Address correspondence and reprint requests to Yasser Ahmed Fouad, Ph.D., Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt; E-mail: [email protected]

The authors declare no financial support or interest to this study.

The authors disclose no conflicts of interest.