| http://www.w3.org/ns/prov#value | - The vascular graft of the present invention may comprise a synthetic graft made of synthetic material, such as expanded polytetrafluoroethylene (ePTFE) or polyester, a biological material or a blood vessel graft, such as autologous internal mammary artery, autologous saphenous vein or cryo-preserved allograft.
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