Functional and molecular characterization of cancer stem-like cells in bladder cancer: a potential signature for muscle-invasive tumors.

Oncotarget · 2015 · PMC4742170 · PMID 26452033

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a clear trendno p-value reported

Although statistically not significant, the results showed a clear trend towards an up regulation of NANOG and KRT14 in muscle-invasive tumors.

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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.