Received: 6 October 2020
Accepted: 29 December 2020
First Online: 20 January 2021
Ethics approval and consent to participate
: Approval of research ethical committee of Faculty of Medicine, Ain-Shams University was obtained (code number: FMASU M D 257/2018) and written informed consent was obtained from patients’ legal guardian(s) after description of the procedure and its potential complications.
: Not applicable.
: The authors declare that they have no competing interests.