Zhou, Si
Shao, Yuanfu
Liu, Qin
Wang, Zhen
Funding for this research was provided by:
National Natural Science Foundation of China (11161015)
Natural Science Foundation of Guangxi (2016GXNSFAA380194)
Article History
Received: 22 June 2017
Accepted: 3 April 2018
First Online: 17 April 2018
Competing interests
: The authors declare that they have no competing interests.