Xu, Jiaxuan
Wang, Guodong
Chen, Xiaojie
Shen, Yanfen
Wang, Xinpeng
Wang, Hongzhi
Article History
Received: 2 September 2022
Accepted: 23 January 2023
First Online: 1 February 2023
Declarations
:
: According to the ethical guidelines of the Helsinki Declaration, the study protocol was approved by the Research and Ethics Board of Peking University Cancer Hospital & Institute. As this was an observational study, the requirement for informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.