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. 2009 Jun 11;4:225–232. doi: 10.2147/copd.s3452

Table 1.

Treatment arms in the clinical study showing the double-dummy design

Treatment arm Respimat®SMI Turbuhaler®
1 Budesonide 100 μg per puff Placebo
2 Budesonide 200 μg per puff Placebo
3 Placebo Budesonide 200 μg per puff