Quality of life and adherence to inhaled corticosteroids and tiotropium in COPD are related.

Int J Chron Obstruct Pulmon Dis · 2016 · PMC4968688 · PMID 27555758

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showed a trendno p-value reported

The number of exacerbations in the year prior to inclusion in this study showed a trend in which underusers were more often infrequent exacerbators.

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