Wu, Weining
Yu, Tianfu
Wu, Youzhi
Tian, Wei
Zhang, Junxia
Wang, Yingyi
Article History
Received: 14 November 2018
Accepted: 8 March 2019
First Online: 21 March 2019
Ethics approval and consent to participate
: The procedures of this study were approved by the Institutional Review Board of Nanjing Medical University.
: Not applicable.
: The authors declare that they have no competing interests.
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