coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruction
coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruction
coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruction
coronary angiography: coronary artery bypass graft origin fourth saphenous vein graft obstruction