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. 2014 Jul 11;15(1):78. doi: 10.1186/1465-9921-15-78

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Copyright © 2014 Donohue et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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LS mean change from baseline in trough FEV₁(A) and FVC (B). CI, confidence interval; FEV₁, forced expiratory volume in one second; FVC, forced vital capacity; LS, least squares; UMEC, umeclidinium; VI, vilanterol.