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Pseudo-coloured images of cross-sections from tumors excised 24 h after end of treatment with BAY-87-2243 or carrier for 3, 5 or 7 days. Green: hypoxia, pimonidazole; blue: perfusion, Hoechst 33342; red: vascular endothelium, CD31; grey: necrotic areas. Scale bar: 500 μm.
