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Ducharme FM, Lasserson TJ, Cates CJ. Long-acting beta2-agonists versus anti-leukotrienes as add-on therapy to inhaled corticosteroids for chronic asthma. Cochrane Database Syst Rev 2006;(4):CD003137.
Clinical impact ratings GP/FP/Primary care âââââââ IM/Ambulatory care âââââââ Allergy & immunology âââââââ Paediatrics âââââââ
Medline, CINAHL, EMBASE/Excerpta Medica, Cochrane Central Register of Controlled Trials, Cochrane Airways Group Specialised Register (to March 2006), hand searches of respiratory journals and meeting abstracts, and bibliographies of relevant published and unpublished studies and reviews.
Study selection and assessment:
randomised controlled trials (RCTs) that evaluated the effectiveness of adding LABAs (salmeterol or …
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