Funding for this research was provided by:
China Scholarship Council (Grant No. 201802180064)
?Six Talent Peak? of Jiangsu Province (SWYY-025)
The Qinglan Project of Jiangsu Province (2016)
Shenlan Project of Jiangsu University of Science and Technology (2015)
Text and Data Mining valid from 2019-01-06
Received: 31 October 2018
Accepted: 26 December 2018
First Online: 6 January 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: The authors declare that there are no studies conducted with human participants or animals.