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Authors
Li, Na
Wang, Xingcui
Sun, Congcong
Wu, Xinwei
Lu, Mei
Si, Youfeng
Ye, Xiang
Wang, Tan
Yu, Xiaolin
Zhao, Xinjing
Wei, Na
Wang, Xingbang
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Funding
Funding for this research was provided by:
Shandong Provincial Natural Science Foundation, China (ZR2016HB37)
Shandong Medical Science and Technology Development Plan Project (2017WS433, 2017WSA01044)
Science and technology projects of Jinan health and family planning commission (2016-1-50)
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Article History
Received: 5 May 2019
Accepted: 24 July 2019
First Online: 19 August 2019
Ethics approval and consent to participate
: The protocol of this study was approved by the local Ethical Committee of the Qilu Hospital of Shandong University (KYLL-2017(KS)-088). All volunteers received information concerning their participation in the study and gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
