Funding for this research was provided by:
National Natural Science Foundation of China (81702144, 81870972)
Text and Data Mining valid from 2020-03-30
Received: 3 November 2019
Accepted: 9 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethics Committee of Southern Medical University Affiliated Fengxian Hospital. All procedures performed in studies involving human participants or animals were in accordance with the ethical standards of the institutional and national research committee. Written informed consent was obtained from all individual patients included in the study.
: Not applicable.
: The authors declare that they have no competing interests.