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Authors
Luo, Jingjing
Zhao, Dan
Gao, Tingting
Sun, Jingjie
Li, Peilong
Wang, Xuehong
Wang, Xueqing
Chai, Shujun
Li, Jiayan
Zhou, Chengchao
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (72274109)
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Article History
Received: 28 March 2023
Accepted: 4 January 2024
First Online: 23 January 2024
Declarations
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: This study protoco was approved and organized by Health Commission of Shandong Province. This study was reviewed and approved by the Institutional Review Board (Academic Research Ethics Committee) of Shandong University School of Public Health. All procedures were in accordance with the ethical standards of the Helsinki Declaration. Informed consent has been obtained from the participants, their parents and legally authorized representatives in this study.
: Not applicable.
: The authors declare that they have no competing interests.
