Childhood asthma, response to oral prophylaxis.
D000293:Adolescent; D001249:Asthma / Q000517:prevention & control*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007665:Ketotifen / Q000627:therapeutic use*; D008297:Male; D011446:Prospective Studies
D007665:Ketotifen