Tumours with PI3K activation are resistant to dietary restriction.

Nature · 2009 · PMC2692085 · PMID 19279572

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did not reach statistical significanceno p-value reported

Although DR tended to decrease the number of Ki-67 positive cells in DR-sensitive but not DR-resistant tumours, these effects did not reach statistical significance (data not shown).

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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.