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. 2018 Jan 12;5(1):e000246. doi: 10.1136/bmjresp-2017-000246

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© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

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Forest plot for chronic obstructive pulmonary disease (COPD) comparing biomass smoke exposed with non-exposed to biomass smoke separated by COPD phenotypes in women. CB, chronic bronchitis; ES, effect size.