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Increased neovascularization in rAAA. A, Results of the determination of microvessel density between (B) stable (eAAA) and (C) ruptured AAA (rAAA) samples (n=5/group); *P<0.05. Arrows indicate microvessels in the media‐adventitia border zone of aneurysmatic walls. Data are demonstrated as mean±SEM, and Mann‐Whitney U test was performed to identify differences of the percentage of vasa vasorum. AAA indicates abdominal aortic aneurysm; eAAA, elective AAA; rAAA, ruptured AAA.
