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Macrographs, histology, and immunohistochemistry of explanted vascular grafts. Photographs of TEVG AV shunt (A) and ePTFE AV shunt (B) 4 weeks after surgery. H&E (C), Masson's trichrome (D), VVG (E), VK staining (F), and vWF immunostaining (G) of explanted vascular grafts. Scale bar (C–F) 200 μm, (G) 50 μm. H&E, hematoxylin and eosin; VK, von Kossa; VVG, Verhoeff-Van Gieson; vWF, von Willebrand factor. Color images available online at www.liebertpub.com/tec
