Article History
Received: 8 February 2021
Accepted: 15 July 2021
First Online: 31 July 2021
Declarations
:
: The research related to human subject use complied with all the relevant national regulations and institutional policies. Local ethical approval for the study was obtained from the Research Committee of the Faculty of Medicine at Sohag University, Egypt (Number 612, 2017). Written informed consent was obtained from all parents of the participating children.
: The authors declare that they have obtained the consent for publication from each parent’s patient.
: The authors declare that they have no competing interests.