RT Journal Article SR Electronic T1 Omalizumab decreases exacerbations and allows a step down in daily inhaled corticosteroid dose in adults and children with moderate-to-severe asthma JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 135 OP 135 DO 10.1136/eb-2014-101759 VO 19 IS 4 A1 Neil C Thomson YR 2014 UL http://ebm.bmj.com/content/19/4/135.abstract AB