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Authors
Huang, Zhi
Zhang, Yan
Wang, Jinlian
Tan, Xia
Zhang, Aiping
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Funding
Funding for this research was provided by:
the Natural Science Foundation of Hunan Province (Grant No. 2023JJ40467)
The Planned Science and Technology Project of Hunan Province (2021SK53212)
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Article History
Received: 30 June 2024
Accepted: 17 January 2025
First Online: 30 January 2025
Declarations
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: The study was approved by the Ethics Committee of the Changsha City Maternal and Child Health Care Hospital (No. EC-20230111-04). The data from a retrospective study are de-identified, and the requirement for informed consent was therefore waived by the Ethics Committee of the Changsha City Maternal and Child Health Care Hospital. All methods in this study complied with the Helsinki Declaration.
: Not applicable.
: The authors declare no competing interests.
