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The Incidence Proportion of Patients with Breast Cancer and Bone Metastases at the Time of Initial Diagnosis According to Tumor Subtype in the SEER Cohort. A, The incidence proportion of patients among entire cohort. B, The incidence proportion of patients among subset with metastatic disease. The number above the histogram denotes the incidence proportion of patients with bone metastases. HER2, human epidermal growth factor receptor 2; HR, hormone receptor
