Shammas, R L Reversibility of the "string sign" of the left internal mammary artery graft. [electronic resource] - Catheterization and cardiovascular diagnosis Nov 1993 - 236-9 p. digital Publication Type: Case Reports; Journal Article ISSN: 0098-6569 Standard No.: 10.1002/ccd.1810300313 doi Subjects--Topical Terms: AgedAged, 80 and overCardiac CatheterizationCollateral Circulation--physiologyCoronary AngiographyCoronary Artery BypassCoronary Circulation--physiologyGraft Occlusion, Vascular--diagnostic imagingHemodynamics--physiologyHumansMaleMyocardial Infarction--diagnostic imagingMyocardial RevascularizationRecurrenceReoperationSaphenous Vein--transplantation