title: Letter: Pulmonary embolectomy with preoperative circulatory support.
mesh_terms: D005112:Extracorporeal Circulation; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use; D010102:Oxygen Inhalation Therapy; D011655:Pulmonary Embolism / Q000188:drug therapy / Q000601:surgery*; D012769:Shock / Q000188:drug therapy
chemical_list: D006493:Heparin; D007545:Isoproterenol