Yu, Jun
Wang, Wei
Article History
Received: 19 September 2022
Accepted: 12 January 2023
First Online: 18 January 2023
Declarations
:
: The study protocol complied with the Declaration of Helsinki and was approved by the Medical Ethics Review Committee of Fuwai Hospital, and the requirement for informed consent was waived by the Medical Ethics Review Committee of Fuwai Hospital due to the nature of retrospective analyses.
: Not applicable.
: The authors declare that they have no competing interests.