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In Vitro, Pharmacokinetic, Pharmacodynamic, and Safety Comparisons of Single and Combined Administration of Tiotropium and Salmeterol in COPD Patients Using Different Dry Powder Inhalers

Crossref DOI link: https://doi.org/10.1208/s12248-015-9751-7

Published Online: 2015-03-21

Published Print: 2015-07

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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