Li, Sheng-Jin
Hua, Zheng-Shuang
Huang, Li-Nan
Li, Jie
Shi, Su-Hua
Chen, Lin-Xing
Kuang, Jia-Liang
Liu, Jun
Hu, Min
Shu, Wen-Sheng
Article History
Received: 11 March 2014
Accepted: 8 August 2014
First Online: 27 August 2014
Competing interests
: The authors declare no competing financial interests.