Funding for this research was provided by:
Chinese Medical Science Academy Central scientific research institutes' basic scientific research business expenses Clinical and translational medicine research fund project (2019XK320010)
Received: 1 January 2020
Accepted: 15 April 2020
First Online: 20 April 2020
Ethics approval and consent to participate
: Since our study is a meta-analysis, an Ethical Review Committee Statement is not required.
: Not applicable.ssss
: All authors declare no conflict of interest.