Incidence of residual thrombi following successful thrombolytic therapy in acute myocardial infarct and their significance for the rate of early reocclusion. A report of a multicenter dose-finding study for thrombolytic therapy with urokinase preactivated natural prourokinase - Gulba, D C; Bode, C; Topp, J; Hopp, H W; Westhoff-Bleck, M; Rafflenbeul, W; Lichtlen, P R (Z Kardiol, 1990)