Wang, Haibin
Qi, Xiangyu
Gao, Ri
Wang, Jingjing
Dong, Bin
Jiang, Jiafu
Chen, Sumei
Guan, Zhiyong
Fang, Weimin
Liao, Yuan
Chen, Fadi
Article History
Received: 24 February 2014
Accepted: 19 September 2014
First Online: 23 October 2014
Competing interests
: The authors declare no competing financial interests.