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Macroscopic views of the implanted patches at 3 months. All grafted vessels were patent at 3 months postimplantation. The PDO patch is completely integrated in the IVC wall (a), whereas the PHBVV patch can still be distinguished from the IVC (b). A granuloma surrounds the PU patch (c). Scale bar: 3 mm. Color images available online at www.liebertpub.com/tea
