Clinical value of prognosis gene expression signatures in colorectal cancer: a systematic review.

PLoS One · 2012 · PMC3492249 · PMID 23145004

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showed a trendno p-value reported

Due to lack of balance in outcome groups in some datasets, RF showed a trend to preferably classify into the most frequent group.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.