title: Letter: Prophylaxis for postoperative venous thrombosis.
mesh_terms: D003365:Costs and Cost Analysis; D003911:Dextrans / Q000627:therapeutic use; D006493:Heparin / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D008722:Methods; D009369:Neoplasms / Q000601:surgery; D011183:Postoperative Complications / Q000517:prevention & control*; D013165:Splints; D013924:Thrombophlebitis / Q000517:prevention & control*
chemical_list: D003911:Dextrans; D006493:Heparin