Funding for this research was provided by:
National Natural Science Foundation of China (81960015, 81800051)
Youth Science Foundation from the Science and Technology Department of Jiangxi province (20171BAB215002, 20171BAB215040, 20161BAB215251)
Text and Data Mining valid from 2020-02-06
Received: 13 September 2019
Accepted: 29 January 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: Not applicable.
: The authors declare that they have no competing interests.