Qu, Sanyin
Yao, Qin
Wang, Liming
Chen, Zhenhua
Xu, Kunqi
Zeng, Huarong
Shi, Wei
Zhang, Tiansong
Uher, Ctirad
Chen, Lidong
Article History
Received: 7 February 2016
Revised: 21 April 2016
Accepted: 23 April 2016
First Online: 22 July 2016
Competing interests
: The authors declare no conflict of interest.