title: Postoperative deep-vein thrombosis: identifying high-risk patients.
mesh_terms: D006493:Heparin / Q000008:administration & dosage; D006801:Humans; D007430:Intraoperative Care; D011183:Postoperative Complications / Q000517:prevention & control*; D012306:Risk; D013924:Thrombophlebitis / Q000517:prevention & control*
chemical_list: D006493:Heparin