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Confocal imaging showing the effects of radiation on pericyte coverage (marked in red) on endothelial cells of the cardiac microvasculature (marked in blue). Graph displaying NG2/CD31 ratio as % of each individual treatment group and genotype. Values represents mean ± SEM with 4–5 mice in the 4 and 20 weeks group and 4–7 mice in the 40 weeks group,*p<0.05 compared to age-matched, unirradiated controls.
