Funding for this research was provided by:
National Natural Science Foundation of China (81701890)
primarily by grants from the Health Project Foundation (13BJZ11, 17BJZ17)
Text and Data Mining valid from 2019-12-01
Received: 29 July 2019
Accepted: 17 December 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethical Committee of Jinling Hospital (2017NZGKJ-079) and the Ethical Committee provided consent to access the medical records.
: Not applicable.
: The authors declare no competing interests.