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Authors
Wang, Yong
Liu, Mou-jie
Yang, Hui-min
Ma, Chun-yan
Jia, Peng-yu
Jia, Da-lin http://orcid.org/0000-0001-7358-8093
Hou, Ai-jie
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Article History
Received: 22 June 2017
Accepted: 25 June 2018
First Online: 4 July 2018
Ethics approval and consent to participate
: The study had already been approved by Ethics Committee of the First Hospital of China Medical University and all subjects provided their informed, written consent before participation.
: The authors declare that they have no competing interests.
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