1. Jandl JH: Blood: Textbook of Hematology. Boston, Toronto, Little, Brown, and Co, 1987
2. Ratnoff O, Forbes CD: Disorders of Hemostasis. Orlando Grune and Stratton Ine, 1984
3. Schumacher HR, Garvin DF, Triplett DA: Introduction to Laboratory Hematology and Hematopathology. New York, Alan R. Liss Ine, 1984
4. Dacie Sir JV, Lewis SM: Practical Haematology. 6th edition, Edinburgh, Churchill Livingstone, 1984
5. Hirsh J: Venous Thromboembolism: Guide to Management. Missisauga, Ontario, DuPont Pharmaceuticals, 1986