Low-dose heparin in prevention of venous thromboembolism.
D006470:Hemorrhage / Q000209:etiology; D006493:Heparin / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control*; D013923:Thromboembolism / Q000517:prevention & control*
D006493:Heparin