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Authors
Zhao, Jing
Lin, Jun
Wang, Shaopeng
Yang, Fan
Dai, Ying
Li, Xia
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Article History
Received: 20 May 2024
Accepted: 16 December 2024
First Online: 20 December 2024
Declarations
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: All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki Declaration and its later amendments. The study was approved by the Party Committee of Haiyang Municipal Bureau of Statistics, China. Informed consent was obtained from all individual participants included in the study.
: The authors declare no competing interests.
