Zamzam, Sameh M. http://orcid.org/0000-0002-1506-1928
Elshazly, Mohamed
Salah, Mohamed
Enayat, Abdallah
Article History
Received: 14 October 2020
Accepted: 27 November 2020
First Online: 14 December 2020
Ethics approval and consent to participate
: This study has been approved by the ethical committee of the ENT Department, Cairo University.Reference number: Not applicable in our instituteWritten informed consent forms were obtained.
: Written informed consents were obtained.
: The authors declare that they have no competing interests.