Zhang, Cui
Li, Baojun
Zhang, Lei
Chen, Fengjiao
Zhang, Yanhua
Cheng, Wen
Article History
Received: 11 November 2021
Accepted: 30 March 2022
First Online: 1 April 2022
Declarations
:
: This retrospective study was approved by the Ethics Committee of the Harbin Medical University Cancer Hospital and was granted a waiver of written informed consent for use of data. The need for informed consent from all patients was waived due to the study’s retrospective nature. All methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.