coronary angiography: coronary artery bypass graft body first saphenous vein graft obstruction single discrete concentric
coronary angiography: coronary artery bypass graft body first saphenous vein graft obstruction single discrete concentric
catheterization coronary artery bypass graft body SVG-1 obstruction single discrete concentric
catheterization coronary artery bypass graft body svg-1 obstruction single discrete concentric