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Graft surfaces before and after modification: Control (A–C), anti-CD34Ab-modified (C–E), VEGF-modified (F–H), and heparin-only (I–K) are shown. Scale bars represent 100 μm (A, C, F, I), 40 μm (B, D, G, J), and 10 μm (C, E, H, K), respectively.
