Yang, Yifan
Sun, Haipeng
Liu, Xiaoyu
Wang, Mingxing
Xue, Ting
Sun, Baolin
Funding for this research was provided by:
National Natural Science Foundation of China (31070116)
Article History
Received: 31 July 2015
Accepted: 18 December 2015
First Online: 28 December 2015
Compliance with ethical standards
:
: The authors declare no financial or commercial conflict of interest.
Free to read: This content has been made available to all.