1. Adjusted subcutaneous heparin or continuous intravenous heparin in patients with acute deep vein thrombosis;Doyle,1987
2. Subcutaneous heparin compared with continuous intravenous heparin administration in the initial treatment of deep vein thrombosis;Hommes,1992
3. Epi Info Version 5.01b,1991
4. British Medical Journal Confidence Interval Analysis (CIA), Version 1.0;Gardner,1989
5. Continuous intravenous heparin compared with intermittent subcutaneous heparin in the initial treatment of proximal-vein thrombosis;Hull;N Engl J Med,1986