title: Prophylaxis against fatal postoperative pulmonary embolism.
mesh_terms: D000328:Adult; D000368:Aged; D003911:Dextrans / Q000008:administration & dosage; D006493:Heparin / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control*; D011655:Pulmonary Embolism / Q000401:mortality / Q000517:prevention & control*
chemical_list: D003911:Dextrans; D006493:Heparin