Fig. 2From: 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 FoxP3±Helios± in PBMCs, TILs, and NILs. Patients with high frequencies of FoxP3+Helios+ (A), FoxP3+Helios− (B), FoxP3−Helios+ (C), and FoxP3−Helios− (D), in CD3+CD4+ T cells, were compared with those with low frequencies of these subsetsBack to article page