title: Prevention of deep-vein thrombosis.
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D013924:Thrombophlebitis / Q000188:drug therapy / Q000517:prevention & control*
chemical_list: D000925:Anticoagulants; D006493:Heparin