Farag, Heba Mahmoud http://orcid.org/0000-0002-0064-3677
Hady, Aisha Fawzy Abdel
Hamid, Asmaa Abdel
Soliman, Hend
Article History
Received: 9 November 2021
Accepted: 4 January 2022
First Online: 24 January 2022
Declarations
:
: The study was approved by the ethical committee of the ENT Department, Faculty of Medicine, Cairo University, number 25/ 2015. The study was carried out from January 2016 to June 2016. Informed consent was obtained from the parents for their children participation in this research.
: Not applicable
: The authors declare that they have no competing interests.