Received: 5 September 2021
Accepted: 12 September 2021
First Online: 1 November 2021
: The study aim, objectives, and design were explained to the children’s caregivers and written informed consent was signed prior to enrollment in the study. They were also informed that they can withdraw from the study at any time without any negative effect on their relationship with the health care providers. The consent was done in accordance with the ethical guidelines of the ethical committee of the faculty of medicine, Ain Shams University. The code for the ethical approval committee for the study is FMASU M D 366/2018.
: Not applicable.
: The authors declare that they have no competing interests.