1. Elastic compression stockings for prevention of deep vein thrombosis;Amaragiri;The Cochrane Library,2008
2. Thromboprophylaxis in major abdominal surgery for cancer;Negus;J Cancer Surg,2006
3. Prevention of venous thromboembolism in surgical patients;Agnelli;Circulation,2004
4. Deep vein thrombosis;Tiller,2008
5. Venous thromboembolism: A guide to prevention and treatment;Crowther;Nurse Pract,2005