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Authors
Mahmoud, Wael Hussein https://orcid.org/0000-0002-0347-7846
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Article History
Received: 4 March 2021
Accepted: 3 June 2021
First Online: 14 July 2021
Declarations
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: All procedures performed in studies involving human participants were in accordance with the ethical standards of the 1964 Helsinski Declaration and its later ammendments. This prospective study was approved by our University Ethical Committee.
: Informed written consent was obtained from parents or legal guardians.
: Parents or legal guardians signed informed consent regarding publishing their data and photographs.
: Wael Hussein Mahmoud declares no conflict of interest.
