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. 2016 Apr 23;16:58. doi: 10.1186/s12890-016-0213-5

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© Manji et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 2 — Prevalence and severity of abnormal lung functions. Pie charts showing the prevalence of the different types of lung function abnormalities (large pie chart, N = 501). The smaller pie charts show the severity of patients who had restrictive (small upper, n = 65) and obstructive abnormalities (small lower, n = 210)