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. 2017 Feb 4;17(2):287. doi: 10.3390/s17020287

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Comparison of VOC concentration distributions from lung cancer (red, n = 107) and healthy (green, n = 29) controls’ breath; (a) CH₃CN; (b) CHCl₃; (c) methanol; (d) CHN; (e) ethanol; (f) 1-propanol; (g) isoprene; (h) C₂H₃CN; and (i) limonene. The VOCs in (a–e) show significant differences between samples, while those in (f–i) do not show significant differences (Table 1). The distributions of the remaining 11 VOCs are shown in the Supplementary Information (Figure S1).