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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1972 1
1985 2
2003 1
2004 3
2006 1
2007 1
2008 2
2022 1
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Page 1
Improvements with tiotropium in COPD patients with concomitant asthma.
Magnussen H, Bugnas B, van Noord J, Schmidt P, Gerken F, Kesten S. Magnussen H, et al. Among authors: gerken f. Respir Med. 2008 Jan;102(1):50-6. doi: 10.1016/j.rmed.2007.08.003. Epub 2007 Oct 24. Respir Med. 2008. PMID: 17920256 Free article. Clinical Trial.
11 results