Quantifying metabolic heterogeneity in head and neck tumors in real time: 2-DG uptake is highest in hypoxic tumor regions.

PLoS One · 2014 · PMC4134191 · PMID 25127378

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marginal significanceno p-value reported

Tumor oxygenation can fluctuate rapidly, and marginal significance of the relationship between 18 F-FDG and FMISO could be due to the fact that the PET scans were performed several days apart.

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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.