Document is current
Any future updates will be listed below
-
Authors
Li, Yu-Mei
Xu, Chao
Xiang, Yang
Peng, Cheng
Deng, Hong-Wen
- License Information
-
More Information
Article History
Received: 4 November 2016
Revised: 7 February 2017
Accepted: 7 March 2017
First Online: 6 April 2017
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.
