Zheng, Yingying
Luo, Zujin
Cao, Zhixin
Article History
Received: 13 July 2022
Accepted: 10 March 2023
First Online: 20 March 2023
Declarations
:
: The study was conducted in accordance with the principles of the Declaration of Helsinki, and the study protocol was approved by the ethics committee of the Beijing Chao-Yang Hospital, Capital Medical University (NO.2020-KE-94). The need for informed consent was waived by the ethics committee of the Beijing Chao-Yang Hospital, Capital Medical University, because of the retrospective nature of the study.
: Not applicable.
: None.