Funding for this research was provided by:
Tanta University
Article History
Received: 13 February 2022
Accepted: 4 April 2022
First Online: 9 May 2022
Declarations
:
: All authors declare that they have no conflict of interest.
: Local ethics committee of Faculty of Medicine, Tanta University approved the study. The study is in accordance with the ethical standards of institutional research committee and with the 1964 Helsinki declaration and its later amendments.
: An informed consent was obtained from the parents of all subjects of the study before enrollment.
: All the authors transfer, assign, or otherwise convey all copyright ownership, including any and all rights exclusively to the journal, in the event that such work is published by the journal.