title: Low doses of heparin in the prevention of postoperative D.V.T.--a double-blind trial.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D006493:Heparin / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D007457:Iodine Radioisotopes; D010919:Placebos; D011183:Postoperative Complications / Q000517:prevention & control*; D013924:Thrombophlebitis / Q000175:diagnosis / Q000517:prevention & control*
chemical_list: D007457:Iodine Radioisotopes; D010919:Placebos; D006493:Heparin