1. O’Reilly RA. Anticoagulant, antithrombotic, and thrombolytic drugs. In: Gilman AG, Goodman LS, Gilman A, eds. The Pharmacological Basis of Therapeutics, 6th ed. New York, NY: Macmillan Publishing Co.: 1980: pp 1347–1360.
2. Hirsh J. Anticoagulant and platelet antiaggregant agents. In: Barnett HJM, Mohr JP, Stein BM, Yatsu FM, eds. Stroke: Pathophysiology, Diagnosis and Management. New York, NY: Churchill, Livingstone: 1986: pp 925–966.
3. Marciniak E, Gockerman JP. Heparin-induced decrease in circulating antithrombin-III. Lancet. 1977; 2:581–584.
4. Schafer, AI. The hypercoagulable states. Ann Int Med. 1985;102:814–828.
5. Turpie AGG, Gunstensen J, Hirsh J, et al. Randomized comparison of two intensities of oral anticoagulant therapy after tissue heart valve replacement. Lancet. 1988;1:1242–1245.