Funding for this research was provided by:
National Natural Science Foundation of China (71704026)
Fujian Provincial Department of Science and Technology (2017R0044)
Text and Data Mining valid from 2020-04-06
Received: 12 February 2020
Accepted: 30 March 2020
First Online: 6 April 2020
Ethics approval and consent to participate
: Ethics approval was obtained from the medical ethics committee, Fujian Medical University, China. Written informed consent was obtained from all study participants.
: Not applicable.
: The authors declare that they have no competing interests.