Funding for this research was provided by:
Beijing JST reasearch (ZR-201921)
Received: 2 April 2020
Accepted: 5 August 2020
First Online: 9 September 2020
Ethics approval and consent to participate
: The study design was approved by the Ethics Committee of Beijing Jishuitan Hospital (No.201911–15). Given the retrospective nature of the study, the Ethics Committee determined that an informed consent was not necessary.
: Not applicable.
: The authors declare that they have no competing interests.