Risk of death from recurrent ischemic events after intravenous streptokinase in acute myocardial infarction: results from the Intravenous Streptokinase in Myocardial Infarction (ISAM) Study - Schröder, R; Neuhaus, K L; Linderer, T; Leizorovicz, A; Wegscheider, K; Tebbe, U; the ISAM Study Group (Circulation, 1987)