Characterization of domain deletion and/or duplication mutants of a recombinant chimera of tissue-type plasminogen activator and urokinase-type plasminogen activator (rt-PA/u-PA) - Nelles, L; Lijnen, H R; Van Nuffelen, A; Demarsin, E; Collen, D (Thromb Haemostas, 1990)