Pathology of acute episodes in chronic respiratory diseases.
D000208:Acute Disease; D000397:Air Pollution; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001991:Bronchitis / Q000188:drug therapy / Q000473:pathology*; D002908:Chronic Disease; D006801:Humans; D012907:Smoking
D000900:Anti-Bacterial Agents