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Authors
Zhao, Wei
Yin, Jiping
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Article History
Received: 18 October 2025
Accepted: 25 December 2025
First Online: 10 January 2026
Declarations
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: The authors declare no conflict of interest.
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Qingbaijiang District Maternal and Child Health Hospital (No. QBJ-MCH-IRB-2023–041). Due to the retrospective nature of the study, the requirement for informed consent was waived by the committee.
: The requirement for informed consent was waived by the Ethics Committee due to the retrospective nature of this study.
: The manuscript does not contain any individual person’s identifiable data in any form. The requirement for consent to publish was waived by the Ethics Committee.
