Zhang, Shanshan
Zhang, Jianmin
Zhang, Ran
Article History
Received: 26 March 2023
Accepted: 1 February 2024
First Online: 9 February 2024
Declarations
:
: The study protocol was established, according to the ethical guidelines of the Helsinki Declaration and was approved by the Institutional Review Board of Peking University People’s Hospital (2020PHB308-01).Because this study was retrospective, the ethics committee considered informed consent unnecessary and therefore waived the requirement to obtain informed consent.
: Not applicable.
: The authors declare no competing interests.