1. Albrechtsen. O. K. (1957). The fibrinolytic activity of human tissues. Brit. J. Haematol., 3, 284
2. Aoki, W. and Von Kaulla. K. N. (1971). Dissimilarity of human vascular plasminogen activator and human urokinase. J. Lab. Clin. Med., 78, 354
3. Apitz, K. and Der, E. (1942). Influss Experimenteller gerinnungs-ktorugen auf die blutsxilling. Virchow Arch., 308, 590
4. Ashford, T. P. and Freiman. D. G. (1967). The role of the endothelium in the initial phases of thrombosis. Amer. J. Pathol., 50, 257
5. Astrup, T. and Permin, P. M. (1947). Fibrinolysis in the animal organism. Nature (London), 159, 681