Received: 24 November 2021
Accepted: 15 January 2022
First Online: 21 February 2022
: The protocol for the research project was approved by the Ethics Committee of the Specialized Children’s hospital, Cairo University and it conforms to the current provisions of the Helsinki declaration (ID approval: I-080215). Informed oral consent was obtained from the parents after an explanation of the aim of the study.
: It is not applicable as our study did not contain any individual person’s data in any form.
: The authors declare that they have no competing interests.