Yang, Shunli
Shang, Youjun
Wang, Di
Yin, Shuanghui
Cai, Jianping
Liu, Xiangtao
Funding for this research was provided by:
National Natural Science Foundation of China (31101803)
Article History
Received: 12 February 2015
Accepted: 20 June 2015
First Online: 9 July 2015
Conflict of interest
: None of the authors of this paper has a financial or personal relationship with other people or organizations that could inappropriately influence the content of this paper.