Pan, Xin
Ma, Shubei
Sui, Xiaowen
Xie, Lili
Li, Furong
Cheng, Zhengping
Cui, Li
Zhao, Hongling
Article History
Received: 26 July 2022
Accepted: 4 January 2023
First Online: 9 January 2023
Declarations
:
: This study was approved by the ethics committee of the Dalian Municipal Central Hospital (approval number: 2021–054-01). The ethics committee of the Dalian Municipal Central Hospital waived the requirement for informed consent because of the retrospective, descriptive study design. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.