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Authors
Li, Meng
Liu, Lujie
Qin, Yujie
Xiao, Yanfeng
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Article History
Received: 25 March 2025
Accepted: 20 May 2025
First Online: 1 July 2025
Declarations
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: This study was approved by the Ethics Review Committee of the National Center for Health Statistics and written informed consent was obtained from each participant or their parents.
: Not applicable.
: Not applicable.
: The authors declare no competing interests.
