Zhou, Chaomin
Peng, Hongying
Yuan, Jing
Lin, Xin
Zha, Yan
Chen, Hui
Article History
Received: 25 February 2018
Accepted: 31 July 2018
First Online: 16 August 2018
Ethics approval and consent to participate
: Ethics Committee of The People’s Hospital of Guizhou province approved the study, with written consent obtained. All participants were voluntary to take part in our study and had submitted their written consent.
: Not applicable.
: The authors declare that they have no competing interests.
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