Childhood asthma: treatment and severity.
D000293:Adolescent; D000318:Adrenergic beta-Agonists / Q000627:therapeutic use; D001249:Asthma / Q000145:classification / Q000188:drug therapy*; D002648:Child; D002908:Chronic Disease; D004205:Cromolyn Sodium / Q000627:therapeutic use; D006801:Humans; D013256:Steroids / Q000627:therapeutic use; D013806:Theophylline / Q000627:therapeutic use
D000318:Adrenergic beta-Agonists; D013256:Steroids; D013806:Theophylline; D004205:Cromolyn Sodium