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Kaplan–Meier curves of TTP for Scores A and B (A) Kaplan–Meier curves show TTP of patients with high (≥14.78) vs. low Score A values (<14.78). (B) Kaplan–Meier curves show TTP of patients with high (≥0.01782) vs. low Score B values (<0.01782). Score A = Tregs ÷ (CD4+/CD8+ ratio), Score B = Tregs × HLA-DR+CD4+ T cells × PD1+CD8+ T cells, TTP, time to progression.
