Figure 2. Development of the prognostic signature based on FRGs in the TCGA-training set. (A and B) Identification of 11 FRGs by LASSO regression analysis; (C) Distribution of risk scores based on FRGs in BC; (D) Survival status of patients in different groups; (E) Heatmap of the expression profiles of FRGs; (F) Survival analysis for the signature-defined risk groups; (G) Time-dependent ROC curve of the 11- FRGs prognostic signature.