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Authors
Hamed, Reham Mohammad Raafat http://orcid.org/0000-0002-5526-2134
Ayoub, Magda Ibrahim
Abdel Samie, Mai http://orcid.org/0000-0002-7987-3837
Hamam, Nancy Nabil
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Article History
Received: 18 February 2022
Accepted: 10 April 2022
First Online: 12 May 2022
Declarations
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: This manuscript meets the guidelines for ethical conduct and report of research and an informed written consent was obtained from all participants' parents (cases and controls) after they were informed about the nature and the objectives of the study and the study was approved by the local ethics committee of Cairo University (MS-173-2020) in accordance to the 1964 Helsinki Declaration. The authors have no conflicts of interest to declare. The research is unpublished and not under consideration for publication elsewhere.
: Not applicable.
: The authors declare that they have no competing interests.
