A preliminary dose improved USAL30 in the suboptimal group but did not reach statistical significance (5.45% versus 4.99%, p = 0.071).
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Evaluation of Preliminary Bronchodilation Effect on Aerosol Delivery from a Dry Powder Inhaler for Patients with Chronic Obstructive Pulmonary Disease with Suboptimal Peak Inspiratory Flow Rate.
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0.0710
0.0710