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Authors
Hu, Xuewen
Deng, Weiquan
Zhao, Guanggao
Fu, Jinmei
Chen, Delong
Jiang, Tianle
Li, Yunong
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Funding
Funding for this research was provided by:
The National Social Science Fund of China (21BTY088)
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Article History
Received: 15 November 2025
Accepted: 30 April 2026
First Online: 9 May 2026
Declarations
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: The research protocol was approved by the Medical Research Ethics Committee of the Second Affiliated Hospital of Nanchang University, Approval No.: Research Proceedings [2020] No. (125). All the participants in this study were preschool children, and the informed consent of the guardians of all participants has been obtained. The experiment complied with the Declaration of Helsinki.
: All authors have given their consent for publication and have agreed to the submission of this manuscript to “BMC Public health”.
: The authors declare no competing interests.
