Antibiotic policy and infective exacerbation of obstructive airways disease.
D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D006801:Humans; D007239:Infections / Q000188:drug therapy*; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D012189:Retrospective Studies
D000900:Anti-Bacterial Agents