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Survival analysis of the three-gene signature in training and validation datasets. Survival possibility was estimated using the Kaplan-Meier method for HCC patients assigned to high-and low-risk groups by the risk score in the TCGA (a) and ICGC (b) datasets. Patients with a higher risk score had a poorer prognosis in the training and validation datasets. The ROC curve was used to verify the predictive efficiency of the risk score in the TCGA (c) and ICGC (d) datasets.
