Li, Boxing
Jie, Wei
Huang, Lianyan
Wei, Peng
Li, Shuji
Luo, Zhengyi
Friedman, Allyson K
Meredith, Andrea L
Han, Ming-Hu
Zhu, Xin-Hong
Gao, Tian-Ming
Article History
Received: 23 January 2014
Accepted: 19 May 2014
First Online: 22 June 2014
Competing interests
: The authors declare no competing financial interests.