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Authors
Wen, Bin
Ding, Guihua
Xiao, Chuan
Chen, Yaru
Kong, Fanjuan
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Funding
Funding for this research was provided by:
the Hunan Provincial Health and Wellness Commission (202112030366)
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Article History
Received: 7 November 2023
Accepted: 24 February 2025
First Online: 11 March 2025
Declarations
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: This study was approved by the Ethics Committee of Hunan Provincial Maternal and Child Health Care Hospital (2020S072). All the procedures were performed following the ethical standards of the institutional research committee and the 1964 Helsinki declaration and its later amendments. The informed consent requirement was waived by the Ethics Committee of Hunan Provincial Maternal and Child Health Care Hospital because of the retrospective study design.
: Not applicable.
: All authors approved the final manuscript as submitted and agree to be accountable for all aspects of the work.
: The authors declare no competing interests.
