Zhang, Qiongfen
Funding for this research was provided by:
National Natural Science Foundation of China (11301108)
Natural Science Foundation of Guangxi Province (2016GXNSFAA380082)
Article History
Received: 28 February 2018
Accepted: 4 May 2018
First Online: 10 May 2018
Competing interests
: The author declares that she has no competing interests.