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Authors
Yi, Jiao
Tang, Zhiguo
Wang, Leilei
Zhang, Bin
Chen, Xianxia
Liu, Xiaoying
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Article History
Received: 28 July 2025
Accepted: 16 September 2025
First Online: 15 October 2025
Declarations
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: This retrospective research was approved by Hefei Maternal and Child health care Hospital, and was conducted in accordance with the Declaration of Helsinki. Informed consent was waived by the Institutional Review Board because of the retrospective nature of our study.
: Not applicable.
: The authors declare no competing interests.
