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Histological images of engineered vessels. (A–C) H&E staining of TEV cross-sections. (D–F) VVG stain for elastin. Static vessels (A, D); uniaxial vessels (B, E); biaxial vessels (C, F). Scale bars: 200 μm for H&E and 50 μm VVG images. Arrows point to residual PGA segments. H&E, hematoxylin and eosin; PGA, polyglycolic acid; VVG, Verhoeff-Van Gieson.
