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Authors
Ye, Yunzhen
Xiao, Xirong
Zhou, Qiongjie
Li, Xiaotian
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Article History
Received: 27 April 2024
Accepted: 16 June 2025
First Online: 9 July 2025
Declarations
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: This study was approved by the Ethics Committee of Obstetrics and Gynecology Hospital of Fudan University (No. 2013–08). Personal permissions were exempted by the Ethics Committee of Obstetrics and Gynecology Hospital of Fudan University, as the study did not involve biological samples and personal privacy was protected.
: Not applicable.
: The authors declare no competing interests.
