Fig. 3From: Associations of different immune checkpoints-expressing CD4+ Treg/ T cell subsets with disease-free survival in colorectal cancer patientsKaplan–Meier curves of DFS based on frequencies of different immune checkpoints in PBMCs, TILs, and NILs. Patients with high frequencies of PD-1+(A), CTLA-4+ (B), TIM-3+(C), and LAG-3+ (D), in CD3+CD4+ T cells, were compared with those with low frequencies of these subsetsBack to article page