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Authors
Zhang, Zhan
Zong, Xiaonan
Bai, Huihui
Fan, Linyuan
Li, Ting
Liu, Zhaohui
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Funding
Funding for this research was provided by:
Beijing Natural Science Foundation (7214230)
Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital ‘Excellent Youth’ Plan Special Funds (YQRC201906)
Beijing Obstetrics and Gynecology Hospital, Capital Medical University (FCYY201916)
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Article History
Received: 9 August 2022
Accepted: 27 December 2022
First Online: 5 January 2023
Declarations
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: The study was conducted in accordance with the Declaration of Helsinki and its current amendments, and the protocol was approved by the medical ethics committee of Beijing Obstetrics and Gynecology Hospital, Capital Medical University. All subjects are over than 18 years old and have provided written informed consent.
: Not applicable.
: The authors have no competing interests.
