Management of acute exacerbations in chronic bronchitis. A clinical trial.
D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001991:Bronchitis / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D006801:Humans; D013223:Statistics as Topic; D013449:Sulfonamides / Q000627:therapeutic use*
D000900:Anti-Bacterial Agents; D013449:Sulfonamides