Received: 20 September 2022
Accepted: 22 October 2022
First Online: 20 November 2022
: Eligible participants provided their written informed consent and assent for their children to record their sociodemographic and clinical data, then completed the interview questionnaire. The purpose of the study was explained to potential participants and they were informed that their participation in the study is voluntary and they were free to withdraw at any time. Ethical approval was sought from Faculty of Medicine, Ain Shams University Ethics Committee (FMASUR17/2020).
: Not applicable.
: The authors declare that they have no competing interests.