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Authors
Wang, Lijun
Zhao, Fei
Xiao, Zhongqing
Yao, Liang
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Article History
Received: 5 June 2019
Accepted: 3 October 2019
First Online: 7 November 2019
Ethics approval and consent to participate
: The experiment was approved by Jiangxi Maternal and Child Health Hospital.
: Not applicable.
: The authors declare that they have no competing interests.
