title: Prevention of postoperative deep-vein thrombosis using heparin.
mesh_terms: D001780:Blood Coagulation Tests; D005340:Fibrinogen; D006493:Heparin / Q000627:therapeutic use*; D007457:Iodine Radioisotopes; D011183:Postoperative Complications / Q000517:prevention & control*; D013924:Thrombophlebitis / Q000517:prevention & control*
chemical_list: D007457:Iodine Radioisotopes; D005340:Fibrinogen; D006493:Heparin