coronary angiography: coronary artery bypass graft insertion third obtuse marginal obstruction single discrete concentric
coronary angiography: coronary artery bypass graft insertion third obtuse marginal obstruction single discrete concentric
coronary angiography: coronary artery bypass graft insertion third obtuse marginal obstruction single discrete concentric
coronary angiography: coronary artery bypass graft insertion third obtuse marginal obstruction single discrete concentric