Kong, Qian
Wei, Bohan
Niu, Shuoqun
Liao, Jiawen
Zu, Yuliang
Shan, Tao
Article History
Received: 22 December 2022
Accepted: 24 May 2023
First Online: 17 June 2023
Declarations
:
: The study was approved by the Ethics Committee of Qilu Hospital of Shandong University (Qingdao) and Qingdao University (No. QDU-HEC-2022229). As the retrospective nature of the study and conducted anonymously, the data was obtained from the medical records of discharged patients and no identifiable information was included in the data, thus the informed consent was waived off by the Ethics Committee of Qilu Hospital of Shandong University (Qingdao) and the Ethics Committee of Qingdao University. All procedures were performed in accordance with relevant guidelines.
: Not applicable.
: The authors declare that they have no competing interests.