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