(Q36804988)
Statements
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Extended therapy with ipratropium is associated with improved lung function in patients with COPD. A retrospective analysis of data from seven clinical trials (English)
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Rennard SI
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Serby CW
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Ghafouri M
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Johnson PA
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Friedman M
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1 July 1996
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110
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1
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62-70
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Identifiers
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