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Kaplan-Meier analysis of RFS in the HLA-A*2402 matched group. Patients with positive CTL responses had a significantly better RFS than those without (HR=0.159, 95% CI: 0.023–0.697, P=0.011). RFS, relapse-free survival; HLA-A, human leukocyte antigen-A; HR, hazard ratio; CI, confidence interval; CRC, colorectal cancer; CTL, cytotoxic T lymphocyte.
