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Predictive performance of the survival nomogram of BCBM patients reflected by ROC curves. ROC curves for the 1-, 3- and 5-year OS in patients in the training cohort (A–C), validation cohort (D–F), and SEER cohort (G–I). AUC: Area under the curve; BCBM: Breast cancer brain metastasis; OS: Overall survival; ROC: Receiver operating characteristic; SEER: Surveillance, Epidemiology, and End Results Program.
