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Authors
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Funding
Funding for this research was provided by:
the Major Scientific and Technological Projects for collaborative prevention and control of birth defects in Hunan Province (2019SK1010)
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Article History
Received: 23 December 2024
Accepted: 24 April 2025
First Online: 3 May 2025
Declarations
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: The study was approved by the Institutional Review Board (IRB) of Xiangya School of Public Health at Central South University (XYGW-2021-01). The aim and content of this study were explained, and written informed consent was obtained. All procedures were performed in accordance with the principles of the Helsinki Declaration.
: Not applicable.
: The authors declare no competing interests.
