Liu, Sen
Yang, Da-Long
Zhao, Ruo-Yu
Yang, Si-Dong
Ma, Lei
Wang, Hui
Ding, Wen-Yuan
Article History
Received: 5 December 2018
Accepted: 15 March 2019
First Online: 4 April 2019
Ethics approval and consent to participate
: The study was approved and consented by Ethics Committee of The Third Hospital of HeBei Medical University.
: Not applicable.
: The authors declare that they have no competing interests.
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