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Once-daily indacaterol versus tiotropium for patients with severe chronic obstructive pulmonary disease (INVIGORATE): a randomised, blinded, parallel-group study.
Decramer ML, Chapman KR, Dahl R, Frith P, Devouassoux G, Fritscher C, Cameron R, Shoaib M, Lawrence D, Young D, McBryan D; INVIGORATE investigators. Decramer ML, et al. Among authors: mcbryan d. Lancet Respir Med. 2013 Sep;1(7):524-33. doi: 10.1016/S2213-2600(13)70158-9. Epub 2013 Aug 21. Lancet Respir Med. 2013. PMID: 24461613 Clinical Trial.