Tan, Liangcheng
An, Zhisheng
Huh, Chih-An
Cai, Yanjun
Shen, Chuan-Chou
Shiau, Liang-Jian
Yan, Libin
Cheng, Hai
Edwards, R. Lawrence
Article History
Received: 19 May 2014
Accepted: 26 August 2014
First Online: 16 September 2014
Competing interests
: The authors declare no competing financial interests.