Shen, ChangMing
Qiao, GaoFeng
Wang, Cheng
Jin, Feng
Zhang, YunZeng
Article History
Received: 8 October 2021
Accepted: 6 January 2022
First Online: 19 January 2022
Declarations
:
: The retrospective data analysis was approved by the ethics board of Shandong Public Health Clinical Center. The need for patient consent was waived because of the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.