Absence of synergism £ between tissue-type plasminogen activator (t-PA), single-chain urokinase-type plasminogen activator (scu-PA) and urokinase on clot lysis in a plasma milieu in vitro - Collen, D; de Cock, F; Demarsin, E; Lijnen, H R; Stump, D C (Thromb Haemostas, 1986)