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Kaplan-Meier curves of 114 patient outcomes according to chemotherapy effect. Twenty patients, none of whom had shown pCR, developed recurrent disease during the median 58-month follow-up period. Thirteen of these patients died due to breast cancer. The pCR group had higher rates of DFS and OS than the non-pCR group (100% vs 78.1%, 100% vs 87.7%, respectively at 60 months), although statistical significance could not be determined due to the lack of events in the pCR group.
