Article History
Received: 25 March 2020
Accepted: 8 January 2021
First Online: 25 January 2021
Ethics approval and consent to participate
: The study was approved by Qena Faculty of Medicine Ethics Committee. The reference number of the committee is not applicable.Verbal informed consent to participate in the study was obtained from parents or legal guardians of all cases. The consent was verbal as most of our cases’ parents or legal guardians were not educated. The Qena Faculty of Medicine Ethics Committee approved the verbal consent in our study.
: Not applicable
: We declare that we have no competing interests.