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A nomogram predicting the 3- and 5-year distant metastatic free survival of postoperative breast cancer patients. T stage: 0: T0; 1: T1; 2: T2; 3: T3; 4: T4. N stage: 0: N0; 1: N1; 2: N2; 3: N3. SIS group: 0: low SIS group; 1: high SIS group.
