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Authors
Gao, Xin
Wang, Changle
Pan, Bingxin
Liu, Yawen
Yuan, Shuo
Zheng, Shaoru
Yu, Dongmei
Han, Lujuan
Meng, Zhaohua
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Funding
Funding for this research was provided by:
Hebei Provincial Health Commission (20240629)
Hebei Education Department (QN2023260)
Hebei Provincial Department of Finance and Hebei Provincial Health Commission (ZF2024066)
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Article History
Received: 15 January 2025
Accepted: 6 March 2025
First Online: 18 March 2025
Declarations
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: The study protocol of FR02 was approved by the Coordinating Ethical Committee of the Helsinki and Uusimaa Hospital District (Ref. 558/E3/2001). All participants signed an informed consent. The study was conducted according to the World Medical Association’s Declaration of Helsinki on ethical principles. The analysis of publicly available summary statistics does not require ethical approval. Clinical trial number: not applicable.
: Not applicable.
: The authors declare no competing interests.
