Guo, Yan http://orcid.org/0000-0001-5252-3960
He, Jing
Zhao, Shilin
Wu, Hui
Zhong, Xue
Sheng, Quanhu http://orcid.org/0000-0001-8951-9295
Samuels, David C
Shyr, Yu
Long, Jirong
Article History
First Online: 16 October 2014
Competing interests
: The authors declare no competing financial interests.