Hao, Shijie
Cui, Lishan
Jiang, Jiang
Guo, Fangmin
Xiao, Xianghui
Jiang, Daqiang
Yu, Cun
Chen, Zonghai
Zhou, Hua
Wang, Yandong
Liu, YuZi
Brown, Dennis E.
Ren, Yang
Article History
Received: 5 August 2013
Accepted: 15 May 2014
First Online: 12 June 2014
Competing interests
: The authors declare no competing financial interests.