Prophylactic antibiotics in asthmatic children.
D000293:Adolescent; D001249:Asthma / Q000209:etiology / Q000517:prevention & control*; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D010404:Penicillin V / Q000627:therapeutic use*; D010919:Placebos; D011188:Potassium; D012141:Respiratory Tract Infections / Q000150:complications / Q000517:prevention & control*; D013420:Sulfamethoxazole / Q000627:therapeutic use*
D010919:Placebos; D013420:Sulfamethoxazole; D011188:Potassium; D010404:Penicillin V