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A, Elastase perfusion of the infrarenal abdominal aorta. B, An explanted abdominal aortic aneurysm 14 days after elastase perfusion. C, Graph demonstrating aortic aneurysm formation at 14 days after elastase (and not saline) perfusion. Importantly, at 7 days, no differences in aortic diameter are evident between elastase- and saline-treated animals.
