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Authors
Wu, Jiang-Nan
Pérez-López, Faustino R.
Rodríguez, Ignacio
Yao, Li
Mao, Lu-Yi
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Article History
Received: 19 March 2025
Revised: 15 August 2025
Accepted: 26 August 2025
First Online: 4 September 2025
Declarations
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: The study was conducted according to the guidelines of the Declaration of Helsinki and was approved by the Ethics Committee of Obstetrics and Gynecology Hospital of Fudan University (No. 2017-35, 2017-35-C1). Informed consent was waived by the Ethics Committee of Obstetrics and Gynecology Hospital of Fudan University as this was a retrospective study.
: Not applicable.
: The authors declare no competing interests.
