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Disease-free survival in the intent-to-treat population at 5 years: (A) hazard ratio plot of treatment/biomarker interaction; (B) tumours positive for HER1, HER2, or HER3; and (C) tumours negative for HER1, HER2, or HER3. Abbreviations: CI=confidence interval; Exe=exemestane; HER= human epidermal growth factor receptor; HR= hazard ratio; O–E= observed to expected; Tam= tamoxifen; Var= variance.
