coronary angiography: coronary artery bypass graft origin first saphenous vein graft obstruct single discrete, concentric
coronary angiography: coronary artery bypass graft origin first saphenous vein graft obstruct single discrete, concentric
coronary angiography: coronary artery bypass graft origin first saphenous vein graft obstruct single discrete, concentric (procedure)
coronary angiography: coronary artery bypass graft origin first saphenous vein graft obstruct single discrete, concentric (procedure)