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A nomogram was constructed on the basis of age, pathological stage, and risk score (A). ROC curve of the nomogram at 1, 3, and 5 years (B). Calibration plots of overall survival (OS) at 1 (C), 3 (D), and 5 years (E). Differences in PD-1 and CTLA-4 therapy sensitivity between the low- and high-risk populations (F). Differences in chemotherapy sensitivity between the low- and high-risk populations (G).
