Funding for this research was provided by:
National Natural Science Foundation of China (31600547)
Natural Science Foundation of Zhejiang Province (LY15C160003)
Text and Data Mining valid from 2019-04-11
Received: 3 August 2018
Accepted: 3 April 2019
First Online: 11 April 2019
Compliance with ethical standards
: All the authors declare that there is no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.