Funding for this research was provided by:
National Natural Science Foundation of China (11672122, 11765011)
Text and Data Mining valid from 2018-11-11
Received: 5 July 2018
Accepted: 29 October 2018
First Online: 11 November 2018
Compliance with ethical standards
: The authors declare that they have no financial or non-financial competing interests and all of the authors agree to the publication of this paper.
: This research do not involve any Human Participants and/or Animals.