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Authors
Song, Zhimin
Cheng, Yan
Li, Tingting
Fan, Yongfang
Zhang, Qingying
Cheng, Haidong
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81871184)
National Natural Science Foundation of China (81871184)
National Natural Science Foundation of China (81871184)
National Natural Science Foundation of China (81871184)
National Natural Science Foundation of China (81871184)
National Natural Science Foundation of China (81871184)
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Article History
Received: 22 December 2021
Accepted: 21 March 2022
First Online: 6 April 2022
Declarations
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: All procedures in this study were approved by the Human Research Ethics Committee of the Obstetrics and Gynecology Hospital, Fudan University [2015] (grant no. 41). All methods were performed in accordance with the approved guidelines and regulations. All participants gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
