Document is current
Any future updates will be listed below
-
Authors
Li, Jingyuan
Wang, Xiaofeng
Zhao, Lina
Gao, Xingfa
Zhao, Yuliang
Zhou, Ruhong
- License Information
-
More Information
Article History
Received: 30 April 2014
Accepted: 4 July 2014
First Online: 28 July 2014
Competing interests
: The authors declare no competing financial interests.
