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Validation of the constructed risk signature in the verification cohort. (A) Distribution of risk scores and patient status in different risk groups. (B) Heat map displayed the expressions of four candidate genes in the verification cohort. (C) Survival curves of the two risk groups. (D) Time-dependent ROC curve in the verification cohort. (E) Tumor microenvironment analysis by the ESTIMATE algorithm. *p < 0.05; **p < 0.01; ***p < 0.001.
