Dennis E. Niewoehner, MD
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Niewoehner DE. Review: Ipratropium is not more effective than β2-agonists for acute exacerbations of chronic obstructive pulmonary disease. ACP J Club. 2003;138:73. doi: 10.7326/ACPJC-2003-138-3-073
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Published: ACP J Club 2003;138(3):73.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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