Funding for this research was provided by:
National Natural Science Foundation of China (11701259, 11461045, 11771198, 11661053)
China Scholarship Council (201806825038)
Natural Science Foundation of Jiangxi Province (20181BAB201003)
Article History
Received: 29 July 2019
Accepted: 10 September 2019
First Online: 23 September 2019
Competing interests
: The authors declare that they have no competing interests.