Funding for this research was provided by:
National Natural Science Foundation of China (81871848)
Medical innovation project of Fujian Province (2017-CX-25)
Text and Data Mining valid from 2020-03-24
Received: 17 January 2020
Accepted: 16 March 2020
First Online: 24 March 2020
Ethics approval and consent to participate
: Not applicable.
: All authors gave consent to publish.
: The authors declare that they have no competing interests.