Zheng, Xiaoya
Wei, Qiang
Long, Jian
Gong, Lilin
Chen, Hua
Luo, Rong
Ren, Wei
Wang, Yonghong https://orcid.org/0000-0003-2352-2031
Article History
Received: 29 November 2017
Accepted: 20 March 2018
First Online: 11 April 2018
Ethics approval and consent to participate
: The study was approved by Ethics and Human Subject Committee of Chongqing Medical University.
: Yes.
: The authors declare that they have no competing interests.
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