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. 2008 Nov 4;99(11):1859–1866. doi: 10.1038/sj.bjc.6604753

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Copyright © 2008 Cancer Research UK

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Discriminant function plot showing separation of model B (first derivative vector normalised) based upon the training set (red digits) and test set (blue digits) with 95% (blue ellipse) and 90% (green ellipse) confidence limits, where 1=Gleason score less than 7, 2=Gleason score equal to 7 and 3=Gleason score greater than 7. DFA – DF1 vs DF2.