Wang, Yonghong http://orcid.org/0000-0002-1683-6721
Yang, Xukui
Yang, Yuanyuan
Wang, Wenjun
Zhao, Meiling
Liu, Huiqiang
Li, Dongyan
Hao, Min
Article History
Received: 4 February 2015
Revised: 8 October 2015
Accepted: 3 November 2015
First Online: 17 December 2015
Competing interests
: The authors declare no conflict of interest.