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Authors
Huang, Pengxiang
Yang, Yilin
Li, Xiang
You, Jiabao
Huai, Pengcheng
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Funding
Funding for this research was provided by:
Medical and Health Science and Technology Development Project of Shandong Province (202312050997)
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Article History
Received: 16 July 2026
Accepted: 19 August 2026
First Online: 16 September 2026
Declarations
Ethics approval and consent to participate: This study was conducted in accordance with the ethical principles of the Declaration of Helsinki. Oral informed consent was obtained from all participants before data collection. The study protocol was reviewed and approved by the Institutional Review Board of the Shandong Center for Disease Control and Prevention (approval number: 2021–69).
Consent for publication: Not applicable.
Competing interests: The authors declare no competing interests.
