Funding for this research was provided by:
National Natural Science Foundation of China (81930072; 81922057; 81802707)
Received: 24 September 2020
Accepted: 3 December 2020
First Online: 11 January 2021
Ethics approval and consent to participate
: Ethical approval was obtained from the institutional review board (SZR2019–069) of the Sun Yat-sen University Cancer Center. Written informed consent was obtained from participants receiving ICI in validation cohort 2, while the requirement for informed consent was waived for participants in validation cohort 1 due to the retrospective analysis of anonymous data.
: Not applicable.
: The authors declare that they have no conflicts of interest.