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
catheterization coronary artery bypass graft insertion first obtuse marginal obstruction single discrete concentric
catheterization coronary artery bypass graft insertion first obtuse marginal obstruction single discrete concentric