Received: 10 June 2021
Accepted: 3 January 2022
First Online: 14 February 2022
: Approval of research ethical committee of Faculty of Medicine, Ain-Shams University, was obtained (code number: FMASU M D 44/2019) and written informed consent from all the participants’ guardians was obtained.
: Not applicable.
: Prof Ahmed Nagah El-Shaer is a co-author of this study and the Executive Editor for the journal. He declares a competing interest for this submission. He has not handled this manuscript. The rest of the authors have no conflict of interest to declare.