Zheng, Yingying
Luo, Zujin
Cao, Zhixin
Article History
Received: 15 July 2022
Accepted: 13 September 2022
First Online: 18 September 2022
Declarations
:
: This study (NO.2020-KE-94) was approved by the Ethics Committee of the Beijing Chao-Yang Hospital, Capital Medical University. The requirement 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. All procedures were in accordance with Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.