Study objective: To compare the safety of salmeterol xinafoate or placebo added to usual asthma care. Design: A 28-week, randomized, double-blind, placebo-controlled, observational study.
Objective: To compare the efficacy and tolerability of a salmeterol/fluticasone propionate (FP) combination product (50/100µg twice daily) with budesonide (BUD) at a four-fold higher microgram ...
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