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Tiotropium Respimat inhaler and the risk of death in COPD.
Wise RA, Anzueto A, Cotton D, Dahl R, Devins T, Disse B, Dusser D, Joseph E, Kattenbeck S, Koenen-Bergmann M, Pledger G, Calverley P; TIOSPIR Investigators. Wise RA, et al. N Engl J Med. 2013 Oct 17;369(16):1491-501. doi: 10.1056/NEJMoa1303342. Epub 2013 Aug 30. N Engl J Med. 2013. PMID: 23992515 Free article. Clinical Trial.