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Authors
El Refay, Amira Sayed http://orcid.org/0000-0002-6181-1072
Hashem, Shaimaa A.
Mostafa, Hend H.
Kamel, Iman H.
Sherif, Lobna S.
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Article History
Received: 19 February 2021
Accepted: 10 July 2021
First Online: 23 July 2021
Declarations
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: The study was approved by the Medical Research Ethics Committee (MERC) of The National Research Centre registration number is 20092. Written electronic informed consent was obtained before the questionnaire from the legal guardian of the participated children as the form started with the consent and was designed to stop automatically if the parent refused to complete.
: Consent for publication’ statement was included in the informed consent collected from the participants.
: The authors declare that they have no competing interests.
