title: Thoracic empyema.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004322:Drainage; D004653:Empyema / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies