Wei, Huamian
Xing, Hui
Hsi, Jenny H.
Jia, Manhong
Feng, Yi
Duan, Song
He, Cui
Yao, Shitang
Ruan, Yuhua
He, Xiang
Liao, Lingjie
Ma, Yanling
Huang, Yunda
Lu, Lin
Shao, Yiming
Article History
Received: 17 November 2014
Accepted: 1 May 2015
First Online: 2 July 2015
Competing interests
: The authors declare no competing financial interests.