Funding for this research was provided by:
National Natural Science Foundation of China (81470170)
Postdoctoral Research Foundation of China (2017M622811)
Natural Science Foundation of Guangdong Province (2018A030310226)
Text and Data Mining valid from 2019-09-23
Received: 13 July 2019
Accepted: 11 September 2019
First Online: 23 September 2019
Ethics approval and consent to participate
: Not applicable.
: We declare that the Publisher has the Author’s permission to publish the relevant Contribution.
: The authors declare that they have no competing interests.