Gould, K L A noninvasive technic for determining patency of saphenous vein coronary bypass grafts. [electronic resource] - Circulation Sep 1972 - 595-600 p. digital Publication Type: Journal Article ISSN: 0009-7322 Standard No.: 10.1161/01.cir.46.3.595 doi Subjects--Topical Terms: AngiocardiographyCoronary Artery BypassCoronary CirculationElectrocardiographyEvaluation Studies as TopicHumansMethodsSaphenous Vein--transplantationTransplantation, AutologousUltrasonics