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Authors
Fu, Wangqian
Zhu, Yuehua
Chai, Hongqin
Xue, Rui
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Article History
Received: 21 August 2022
Accepted: 13 May 2024
First Online: 28 May 2024
Competing interests
: The authors declare no competing interests.
: The studies involving human participants were reviewed and approved by the Ethics Committee of the Beijing Normal University (IRB: BNU202103100015) with the guidelines of Declaration of Helsinki in June 2019.
: Written informed consent was obtained from the participants and their guardians by the help of their teachers, which was delivered and collected with the questionnaire together.
