Ibrahim, Heba Said
Salem, Aziza Ibrahim
Ahmed, Nessma Magdy Abd El-Rahman
El-Taweel, Hend Aly
Article History
Received: 8 March 2021
Accepted: 23 April 2021
First Online: 3 May 2021
Declarations
:
: No conflict of interest to declare.
: Verbal consent was obtained from all participants (parents /guardians of children).
: All authors agree for publication.
: The study was approved by the Research Ethics Committee of the Medical Research Institute (MRI), Alexandria University (IORG 0008812). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments.