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Prognostic impact of sPCR (A) and tPCR (B) on disease-free survival (DFS). The DFS was 71.7% in the supraclavicular pCR group and 54.1% in the non-supraclavicular pCR group. PCR also predicted a better DFS in patients who had obtained a pCR in all of the breast axillary and supraclavicular (tpCR) sites when compared with those with one or more of the three sites without pCR (non-tpCR).
