Comparison of microbial community compositions of injection and production well samples in a long-term water-flooded petroleum reservoir.

PLoS One · 2011 · PMC3156122 · PMID 21858049

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marginally significantno p-value reported

The low P values (<0.03) for UniFrac significance test between each pair of samples indicated that bacterial structures of these three samples had a marginally significant difference.

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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.