coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruct single discrete concentric
coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruct single discrete concentric
coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruct single discrete concentric
coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruct single discrete concentric