title: Vein graft surveillance.
authors: A
authors: A
authors: Mahomed
mesh_terms: D000792:Angiography; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging*; D006801:Humans; D018616:Ultrasonography, Doppler, Duplex; D014680:Veins / Q000000981:diagnostic imaging / Q000637:transplantation