Funding for this research was provided by:
National Natural Science Foundation of China (21466015, 31760021)
Education Department of Jiangxi Province (GJJ160310)
Jiangxi Provincial Science Foundation for Distinguished Young Scholars (20171BCB23037)
Received: 19 June 2019
Accepted: 10 August 2019
First Online: 29 August 2019
Ethics approval and consent to participate
: Not applicable.
: All authors have approved for the publication.
: The authors declare that they have no competing interests.