Fig. 6From: PD-L1 expression is a predictive biomarker for CIK cell-based immunotherapy in postoperative patients with breast cancerKaplan-Meier curves of breast cancer patients based on postoperative treatment. a OS and RFS curves of patients in CIK treatment group. Significantly improved prognosis was observed in patients with PD-L1-positive expression. b OS and RFS curves of patients in the control group. Patients with PD-L1-negative expression had better prognosis than patients with PD-L1-positive expressionBack to article page