title: Polytetrafluoroethylene or saphenous vein as a femoropopliteal bypass graft?
mesh_terms: D000328:Adult; D000368:Aged; D001807:Blood Vessel Prosthesis; D048909:Diabetes Complications; D005263:Femoral Artery / Q000601:surgery*; D005734:Gangrene / Q000601:surgery; D006801:Humans; D007383:Intermittent Claudication / Q000601:surgery; D007511:Ischemia / Q000601:surgery; D007866:Leg / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D011150:Popliteal Artery / Q000601:surgery; D012501:Saphenous Vein / Q000637:transplantation*
chemical_list: D011138:Polytetrafluoroethylene