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. 2015 Aug 7;13:241. doi: 10.1186/s12957-015-0667-6

Fig. 6.

Fig. 6

Kaplan–Meier curve, 15-year survival, Dukes A group, starting at 100 % survival. Green line represents patients with cytoplasmic reaction for 8-oxodG in tumour cells, blue line represents patients without reaction. Worse long-term survival of patients positive to 8-oxodG in early stage group is suspected due to systematic influence of oxidative stress