Yan, Zhihui http://orcid.org/0000-0002-7149-4939
Wu, Liang
Jia, Xiaojun http://orcid.org/0000-0001-5499-5427
Liu, Yanhong http://orcid.org/0000-0003-4912-1527
Deng, Ruijie
Li, Shujing
Wang, Hai
Xie, Changde
Peng, Kunchi
Article History
Received: 8 March 2017
Accepted: 28 July 2017
First Online: 28 September 2017
Competing interests
: The authors declare no competing financial interests.