title: Multicenter trials of treatment for empyema--after all these years.
authors.forename: John E
authors.initials: JE
authors.lastname: Heffner
mesh_terms: D004322:Drainage; D016724:Empyema, Pleural / Q000188:drug therapy* / Q000209:etiology / Q000601:surgery; D005343:Fibrinolytic Agents / Q000627:therapeutic use*; D006801:Humans; D015337:Multicenter Studies as Topic; D010995:Pleural Diseases / Q000188:drug therapy / Q000209:etiology / Q000601:surgery; D011014:Pneumonia / Q000150:complications / Q000401:mortality; D013300:Streptokinase / Q000627:therapeutic use*
chemical_list: D005343:Fibrinolytic Agents; D013300:Streptokinase