El-Badrawy, Amr
Amin, Mohamed
Elden, Shreif Bahaa
Yousef, Ahmed http://orcid.org/0000-0002-8127-2010
Article History
Received: 15 October 2020
Accepted: 11 April 2021
First Online: 7 May 2021
Declarations
:
: The study was approved by scientific committee of ORL Department of Cairo University and ethics committee of Faculty of Medicine, Cairo University, but the committee reference number is not available . The informed written consent was obtained from all patients.
: Not applicable
: The authors declare that they have no competing interests.