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DFS (black curves) and OS (red curves) of stage B2 patients treated with adjuvant chemotherapy categorized according to the p21 expression (n = 83) (a) and of stage B2 patients with p21-positive tumors categorized according to adjuvant chemotherapy (n = 72) (b). DFS (black curves) and OS (red curves) of stage C patients (n = 120) (c) and of stage B2 + C patients (n = 203) (d) treated with adjuvant chemotherapy categorized according to p21 expression
