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Authors
Ou, Yu-hua
Liu, Yu-kun
Zhu, Li-qiong
Chen, Man-qi
Yi, Xiao-chun
Chen, Hui
Zhang, Jian-ping
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Funding
Funding for this research was provided by:
National Nature Science Foundation of China (81771660)
Guangdong Natural Science Foundation (2018A030313023)
Guangdong Natural Science Foundation (2018A030310162)
Major Program of the National Natural Science Foundation of China (2019YFA0801403)
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Article History
Received: 9 August 2019
Accepted: 3 September 2020
First Online: 18 September 2020
Ethics approval and consent to participate
: Written informed consent was obtained from all pregnant women. This study was approved by the Ethics Committee of Sun Yat-sen Memorial Hospital, Sun Yat-sen University.
: Written informed consent was obtained from all pregnant women.
: The authors declare no conflict of interest.
