Figure 3From: Coexistence of HER2 over-expression and p53 protein accumulation is a strong prognostic molecular marker in breast cancerEffect of Ki67 expression on (a) disease free and (b) overall survival among 494 patients with invasive ductal carcinoma. Disease free survival was significantly better in patients with Ki67 negative tumors than in patients with Ki67 positive tumors (P = 0.001).Back to article page