Wang, Hong
Qiu, Xunding
Lin, Shigeng
Chen, Xubin
Wang, Tao
Liao, Tianan
Article History
Received: 12 October 2017
Accepted: 19 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of the Hainan Provincial People’s Hospital, written informed consent was obtained for each participant, and the study was approved by the Hospital Ethics Committee.
: We obtained the consent to publish the paper.
: The authors declare that they have no competing interests.
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