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Validation of the ECM–related signature in the entire cohort of patients with ESCC. (A) Kaplan-Meier survival curves of the relative overall survival of high- and low-risk patients. (B) ROC curve analysis of the prognostic signature. (C) Distribution of the four gene-based risk scores. (D) Vital statuses of patients in the high- and low-risk groups. (E) Heatmap of four-gene expression profiles in the high- and low-risk groups.
