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NDRG1 expression correlation with overall survival in ER+/HER2− patients. Kaplan-Meier estimate of overall survival according to NDRG1 expression in ER+/HER2− patients. P value from 2-sided log-rank test, and hazard ratio (HR) with 95% confidence interval (P = .08; HR = 2.78, 95% CI = 0.68 to 11.32) is shown. CI = confidence interval; ER = estrogen receptor.
