Funding for this research was provided by:
National Natural Science Foundation of China (21601033, 11875105, 21866006)
Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province (20172BCB22020)
Text and Data Mining valid from 2020-01-09
Received: 24 November 2019
First Online: 9 January 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.