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Authors
Sefein, Ihab K. http://orcid.org/0000-0002-6681-6630
Gaballah, Mohammad M. http://orcid.org/0000-0001-9256-3713
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Article History
Received: 1 November 2022
Accepted: 10 February 2023
First Online: 8 March 2023
Declarations
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: Approval was obtained from the ethics committee of Hearing and Speech Institute on 17 June 2018. The procedures used in this study adhere to the tenets of the Declaration of Helsinki. Informed written consent was obtained from all individual adult participants and from the parents/legal guardians of children under 16 years old included in the study.
: Informed written consent was obtained from the adult patients and from the parents/legal guardians of children under 16 years old for the publication of their data and photographs. None of the data or photographs used compromise patient identity or confidentiality of their information.
: The authors declare that they have no competing interests.
