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Authors
Kellogg, David https://orcid.org/0000-0001-6837-5501
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Article History
Accepted: 22 September 2021
First Online: 2 October 2021
Declarations
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: The author declares that he has no conflict of interest.
: This study is fully compliant with ethical standards at Sangmyung University. Parental approval was obtained, and the children voluntarily agreed to take part.
