Funding for this research was provided by:
Ministry of science and technology of the People's Republic of China (2016YFC1303600)
Text and Data Mining valid from 2019-10-12
Received: 29 April 2019
Accepted: 13 August 2019
First Online: 12 October 2019
Compliance with ethical standards
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The authors declared that there is no conflict of interest related to this report.