coronary angiography: coronary artery bypass graft origin sequential internal mammary artery graft obstruction
coronary angiography: coronary artery bypass graft origin sequential internal mammary artery graft obstruction
coronary angiography: coronary artery bypass graft origin sequential internal mammary artery graft obstruction (procedure)
coronary angiography: coronary artery bypass graft origin sequential internal mammary artery graft obstruction (procedure)