Double blind, randomized comparison of systemic continuous infusion of 0,25 versus 0,50 mg/kg/24 h of Alteplase over 3 to 7 days for treatment of deep venous thrombosis in heparinized patients: Results of the European Thrombolyses with rt-PA in venous Thrombosis (ETTT) Trial. - Bounameaux,H.; Banga,J.D.; Bluhmski,E.; Coccheri,S.; Fiessinger,J.-N.; Haarmann,W.; Lockner,D.; Mahler,F.; Ninet,J.; Schneider,P.-A.; de Torrente,A.; van der Meer,J.; et al. (Thrombosis and Haemostasis, 1992)