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Kaplan-Meier curves for the DFS outcomes among patients without trastuzumab (group 1). Patients in group 1 (255) were divided into two subgroups on average, low and high pre-NLR subgroup 1, according to the values of pre-NLR. Patients in low and high pre-NLR subgroup 1 showed no significant difference in DFS outcome. DFS, disease-free survival; pre-NLR, pretreatment neutrophil/lymphocyte ratio
