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External validation of the prognostic signature and nomogram for LUSC. (a) Comparison of OS between the high-risk and low-risk score groups in the validation cohort. (b) Time-dependent receiver operating characteristic analysis for evaluating the accuracy of the prognostic signature in the validation cohort. Calibration curve of the (c) 3- and (d) 5-year OS for the nomogram in the validation dataset. LUSC, lung squamous cell carcinoma; OS, overall survival (days).
