Zhou, Xueyan
Cao, Lijuan
Jiang, Changtao
Xie, Yang
Cheng, Xuefang
Krausz, Kristopher W.
Qi, Yunpeng
Sun, Lu
Shah, Yatrik M.
Gonzalez, Frank J.
Wang, Guangji
Hao, Haiping
Article History
Received: 3 April 2014
Accepted: 2 July 2014
First Online: 3 September 2014
Competing interests
: The authors declare no competing financial interests.