RT Journal Article SR Electronic T1 Review: LABAs are better than leukotriene receptor antagonists when added to inhaled corticosteroids in recurrent asthma JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 82 OP 82 DO 10.1136/ebm.12.3.82 VO 12 IS 3 YR 2007 UL http://ebm.bmj.com/content/12/3/82.abstract AB