Han, Shujie
Zhang, Hui
He, Yingdong
Chen, Qian
Article History
Received: 15 November 2023
Revised: 3 January 2024
Accepted: 27 January 2024
First Online: 4 March 2024
Compliance with ethical standards
:
: This retrospective study was approved and monitored by the Institutional Review Board of Peking University Health Science Centre. The data were anonymous, and the requirement for informed consent was therefore waived.
: As this study was a retrospective analysis, formal consent was not required. All the authors of the manuscript agreed to its publication.
: The authors declare no competing interests.