Funding for this research was provided by:
Beijing Science and Technology Planning Project (Z181100001618016)
Received: 24 December 2021
Accepted: 19 February 2022
First Online: 25 April 2022
: This study was approved by the institutional review board of Peking Union Medical College Hospital (No. S-K1702) and conducted in accordance with the Declaration of Helsinki. The requirement for informed consent was waived by the institutional review board in view of the retrospective nature of the study.
: All authors consent to the publication.
: The authors declare that they have no competing interests.