Fig. 2From: Minimal prognostic significance of sentinel lymph node metastasis in patients with cT1–2 and cN0 breast cancerPrognostic value of Ki67 index and T stage in cT1–2N0M0 breast cancer. Relapse-free survival stratified by a nuclear grade, b Ki67 index, and c T stage. p value was evaluated using the log-rank testBack to article page