title: Frequency of a normal lung scan observed in the urokinase-streptokinase pulmonary embolism trial.
mesh_terms: D006801:Humans; D011655:Pulmonary Embolism / Q000188:drug therapy*; D013300:Streptokinase / Q000627:therapeutic use*; D014568:Urokinase-Type Plasminogen Activator / Q000627:therapeutic use*
chemical_list: D013300:Streptokinase; D014568:Urokinase-Type Plasminogen Activator