Pan, Jian
Zhang, Zujin
Zhou, Xiangying
Funding for this research was provided by:
the National Natural Science Foundation of China (No.11501125)
the Science and Technology Project of Jiangxi Provincial Education Department (No.GJJ170821)
the Natural Science Foundation of Gannan Normal University (No.201605)
Article History
Received: 23 February 2018
Accepted: 15 June 2018
First Online: 27 July 2018
Competing interests
: The authors declare that they have no competing interests.