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Authors
Zhu, Menghan
Chen, Shouzhen
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Article History
Received: 15 April 2023
Accepted: 29 June 2023
First Online: 26 July 2023
Declarations
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: The authors declare no competing interests.
: All methods were carried out in accordance with relevant guidelines and regulations. All experimental protocols were approved by the ethics committee of the Obstetrics and Gynecology Hospital of Fudan University. Informed consent was waived by the ethics committee of the Obstetrics and Gynecology Hospital of Fudan University due to retrospective nature of the study.
: Not applicable.
