Fig. 1From: Immunohistochemical expression of 8-oxo-7,8-dihydro-2′-deoxyguanosine in cytoplasm of tumour and adjacent normal mucosa cells in patients with colorectal cancerIntensity of antibody anti-8 hydroxyguanosine (N45.1, ab48508, Abcam, USA) staining is shown, classified into four grades as a negative, ×200; b weak, ×400; c medium, ×200; and d intensive, ×200. Counterstaining haematoxylinBack to article page