Meta-analysis: Effects of Adding Salmeterol to Inhaled Corticosteroids on Serious Asthma-Related Events

Figure 1.
Figure 1. Study flow diagram.

GSK = GlaxoSmithKline.

*Studies could contribute to more than 1 subanalysis.

This Article

  1. Published online before print June 3, 2008, Ann Intern Med July 1, 2008 vol. 149 no. 1 33-42
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