title: A metal ring marker for the proximal end of an aorta-to-coronary artery graft.
mesh_terms: D001161:Arteriosclerosis / Q000601:surgery; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000601:surgery*; D006801:Humans; D008722:Methods; D013193:Stainless Steel; D013523:Surgical Equipment
chemical_list: D013193:Stainless Steel