Treatment of acute exacerbations in chronic bronchitis.
D000328:Adult; D000368:Aged; D000667:Ampicillin / Q000627:therapeutic use*; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001991:Bronchitis / Q000188:drug therapy*; D002908:Chronic Disease / Q000188:drug therapy; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
D000900:Anti-Bacterial Agents; D000667:Ampicillin