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Authors
Guo, Haojun https://orcid.org/0000-0002-7182-2023
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Article History
Accepted: 3 January 2022
First Online: 24 January 2022
Declarations
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: All authors declare that they have no conflict of interest.
: This study was done in China where there is no specific requirement from the Research Ethics Board. But the author had got the consent from all the participants before collecting data and entering the classroom.
