- Enhancement of recombinant tissue-type plasminogen activator thrombolysis with a selective factor Xa inhibitor derived from the leech Hirudo medicinalis: comparison with heparin and hirudin in a rabbit thrombosis model. Kornowski, R., Eldor, A., Werber, M.M., Ezov, N., Zwang, E., Nimrod, A., Chernine, A., Finkelstein, A., Panet, A., Laniado, S., Keren, G. Coron. Artery Dis. (1996)