Document is current
Any future updates will be listed below
-
Authors
Xue, Qiang
Ren, He
Xu, Chao
Wang, Gang
Ren, Chunhua
Hao, Jihui
Ding, Dan
- License Information
-
More Information
Article History
Received: 2 September 2014
Accepted: 22 January 2015
First Online: 5 March 2015
Competing interests
: The authors declare no competing financial interests.
