Prevention of postoperative deep vein thrombosis in Sweden: results of a survey.
D006493:Heparin / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D013548:Sweden; D013924:Thrombophlebitis / Q000517:prevention & control*
D006493:Heparin