Lv, Baohua
Cheng, Xiaojuan
Xie, Yuanzhong
Cheng, Yanling
Yang, Zhenghan
Wang, Zhenchang
Jin, Erhu
Article History
Received: 28 March 2023
Accepted: 2 August 2023
First Online: 19 September 2023
Declarations
:
: The study protocol was approved by the ethics committee of Beijing Friendship Hospital and adhered to the principles of the Declaration of Helsinki. The study was conducted in line with the guidelines outlined by the research committee of Beijing Friendship Hospital. It was approved by the Ethics Committee of Beijing Friendship Hospital, Capital Medical University and the informed consent waiver was approved by the Ethics Committee of Beijing Friendship Hospital, Capital Medical University for this retrospective analysis. (Approval No.2022-P2-332-01).
: Not applicable.
: The authors declared that there is no competing interests.