Sulphonamide prophylaxis in chronic bronchitis; a clinical trial.
D035843:Biomedical Research; D001991:Bronchitis / Q000517:prevention & control*; D029481:Bronchitis, Chronic; D006801:Humans; D000077145:Sulfanilamide; D013424:Sulfanilamides; D013449:Sulfonamides / Q000627:therapeutic use*
D013424:Sulfanilamides; D013449:Sulfonamides; D000077145:Sulfanilamide
BRONCHITIS/prevention and control; SULFONAMIDES/therapeutic use