<prompt> Best graft for infra inguinal approach bypass:DacronPTFEPolyesterAutologous vein  <response>: Vascular Graft Bioprosthetic Synthetic Autograft Homograft allograft Heterograft Xenograft Tissue engineered Textile: - Dacron Non-textile: -ePTFE - Polyurethane Best Natural vascular graft: Reversed saphenous vein Best synthetic vascular graft: Dacron Best vascular graft for suprainguinal bypass: Dacron Best vascular graft for infrainguinal bypass: Saphenous vein Best vascular graft for aoa: Dacron Most preferred graft for CABG: LIMA left internal mammary aery Saphenous vein MC used graft for CABG: Saphenous vein 