Response and prognosis to neoadjuvant chemotherapy in women early breast cancer of HER2-low status.

Achieving pCR was associated with improved DFS, with a statistically significant difference in DFS curves between PCR and nonPCR cases ( p =0.008) ( Figure 2A ), and PCR patients also showed a trend toward better OS, but not statistically different ( p =0.108) ( Figure 3A ).

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