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Authors
Li, Wenlei
Ma, Li
Xia, Shuliang
Zou, Minghui
Chen, Weidan
Chen, Xinxin http://orcid.org/0000-0003-3279-5314
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81800280)
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Article History
Received: 19 November 2020
Accepted: 5 April 2021
First Online: 13 April 2021
Declarations
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: Ethical approval was waived by the institutional ethics committee of the Guangzhou women and children’s medical center in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.
: Not applicable.
: None declared.
