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Kaplan-Meier curves of OS and BCSS for each predictor. (A,B) Bone metastasis; (C,D) liver metastasis; (E,F) lung metastasis; (G,H) brain metastasis; (I,J) age; (K,L) race; (M,N) marital status; (O,P) subtype; (O,R) tumor size; (S,T) grade; (U,V) number of positive lymph nodes. OS, overall survival; BCSS, breast cancer-specific survival.
