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. 2016 Jun 16;26:16030. doi: 10.1038/npjpcrm.2016.30

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Copyright © 2016 Primary Care Respiratory Society UK/Macmillan Publishers Limited

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COPD exacerbations during the FORWARD study in patients stratified by different baseline characteristics. (a) Use of tiotropium before study entry; data from Wedzicha et al. ²⁸ (b) Percentage count of baseline blood eosinophils; data on file. BDP/FF, beclometasone dipropionate/formoterol.