Article History
Received: 8 January 2021
Accepted: 10 June 2021
First Online: 4 October 2021
Declarations
:
: This study was approved by the IRB of Surgery Department, Faculty of Medicine, Ain Shams University, with reference number 00006379.A written consent was obtained from a parent or guardian for all participants.
: Not applicable
: There was no conflict of interest in this project.