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. 2009 Nov 17;10(1):111. doi: 10.1186/1465-9921-10-111

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Copyright ©2009 Carolan 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/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Percentage of the total of 155 oxidant-related genes surveyed that are smoking responsive in small airway epithelium and alveolar macrophages. A. Oxidant-related genes whose expression is up-regulated in healthy smokers compared to healthy nonsmokers. B. Oxidant-related genes whose expression is down-regulated in healthy smokers compared to healthy nonsmokers. For both A and B, the percentage of oxidant-related genes up or down-regulated are presented on the ordinate and the different categories are presented on the abscissa; within each bar is the number of genes modified.