Funding for this research was provided by:
Science and Technology Planning Project of Guangdong Province (2018A0303130068, 2016A010103036, 2017A050506055, 2018050506081, 2017A040405055)
Major Projects of Guangdong Education Department for Foundation Research and Applied Research (2017KZDXM045)
Text and Data Mining valid from 2020-04-23
Received: 13 January 2020
Accepted: 15 April 2020
First Online: 23 April 2020
Ethics approval and consent to participate
: Authors approved the ethics in publishing and consent to participate thereof.
: The authors gave consent for publication.
: The authors declare no competing financial interests.