References
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- Poller L, Hirsh J. Special report: a simple system for the derivation of International Normalized Ratios for the reporting of prothrombin time results with North American thromboplastin reagents. Am J Clin Pathol 1989: 92(1): 124–6
- Gallus A, Jackaman J, Tillett J, et al. Safety and efficacy of warfarin started early after submassive venous thrombosis or pulmonary embolism. Lancet 1986: 2(8519): 1293–6
- Hull RD, Raskob GE, Rosenbloom D, et al. Heparin for 5 days as compared with 10 days in the initial treatment of proximal venous thrombosis. N Engl J Med 1990: 322(18): 1260–4
- Resnekov L, Chediak J, Hirsh J, et al. Antithrombotic agents in coronary artery disease. Chest 1989: 95(2 Suppl): 52S–72
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- Levine HJ, Pauker SG, Salzman EW. Antithrombotic therapy in valvular heart disease. Chest 1989: 95(2 Suppl): 98S–106
- Stein PD, Kantrowitz A. Antithrombotic therapy in mechanical and biological prosthetic heart valves and saphenous vein bypass grafts. Chest 1989: 1989: 95(2 Suppl): 118S–27
- Preliminary report of the Stroke Prevention in Atrial Fibrillation Study. N Engl J Med 1990: 322(12): 863–8
- The Boston Area Anticoagulation Trial for Atrial Fibrillation Investigators. The effect of low-dose warfarin on the risk of stroke in patients with nonrheumatic atrial fibrillation. N Engl J Med 1990: 323(22): 1505–11
- Browse NL, Clemenson G, Croft DN. Fibrinogen detectable thrombosis in the legs and pulmonary embolism. BMJ 1974: 1: 603
- Hull RD, Raskob GE, Hirsh J. Prophylaxis of venous thromboembolism: an overview. Chest 1986: 89(5 Suppl): 374S–83
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- The Multicenter Trial Committee. Dihydroergotamine-heparin prophylaxis of postoperative deep vein thrombosis. JAMA 1984: 251(22): 2960–6
- Leyvraz PF, Richard J, Bachmann F, et al. Adjusted versus fixed-dose subcutaneous heparin in the prevention of deep-vein thrombosis after total hip replacement. N Engl J Med 1983: 309(Oct 20): 954–8
- Powers PJ, Gent M, Jay RM, et al. A randomized trial of less intense postoperative warfarin or aspirin therapy in the prevention of venous thromboembolism after surgery for fractured hip. Arch Intern Med 1989: 149(Apr): 771–4
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- Bern MM, Lokich JJ, Wallach SR, et al. Very low doses of warfarin can prevent thrombosis in central venous catheters: a randomized prospective trial. Ann Intern Med 1990: 112(6): 423–8
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Selected reading
- Cruickshank MK, Levine MN, Hirsh J, et al. A standard heparin nomogram for the management of heparin therapy. Arch Intern Med 1991: 151(2): 333–7