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. 2014 Dec 16;14:202. doi: 10.1186/1471-2466-14-202

Figure 2.

Figure 2

Two dimensional PCA plot between healthy subjects (squares) and patients with lung cancer (circles). Electronic nose could discriminate the two groups with a classification accuracy of 72% when breath samples were collected with a previously standardised collection procedure. The difference was significant (p = 0.02).