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Kaplan-Meier plot of DFS by SET2,3 status according to the predefined cutpoint (high > 2.10, low ≤ 2.10). Prognostic separation continued throughout the first 5 years of follow-up (duration of adjuvant endocrine therapy). DFS, disease-free survival; HR, hazard ratio; SET2,3, sensitivity to endocrine therapy index.
