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Authors
Zhao, Liang
Luo, Haiyan
Chang, Hualong
Wu, Jinping
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Article History
Received: 24 April 2026
Accepted: 8 July 2026
First Online: 15 July 2026
Declarations
Ethics approval and consent to participate: The study adhered to the principles of the Declaration of Helsinki. Ethical approval for this study was granted by the Ethics Committee of Ningbo University (approval number: TY2024087). Research purposes and procedures were explained in full to kindergarten administrators and parents prior to the study, and written informed consent was obtained from all parents or legal guardians
Consent for publication: Not applicable.
Competing interests: The authors declare no competing interests.
