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Respiratory Medicine
Volume 104, Issue 7
, Pages
995-1004
, July 2010
Combining tiotropium and salmeterol in COPD: Effects on airflow obstruction and symptoms
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☆ Study not registered in the Clinical Trials Registry; all patients were entered before implementation of the registry.
PII: S0954-6111(10)00087-9
doi: 10.1016/j.rmed.2010.02.017
© 2010 Elsevier Ltd. All rights reserved.
« Previous
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Respiratory Medicine
Volume 104, Issue 7
, Pages
995-1004
, July 2010
