Liu, Peipei
Liu, Xiangping
Hu, Jingfei
Han, Zhenliang
Li, Fei
Wang, Yuanyuan
Song, Long
Chen, Zongbo
Funding for this research was provided by:
the National Natural Science Foundation of China (No.31171212)
Article History
Received: 30 August 2015
Accepted: 31 January 2016
First Online: 13 February 2016
Compliance with ethical standards
:
: The authors declare no conflict of interest.