Optical sensory arrays for the detection of urinary bladder cancer-related volatile organic compounds.

J Biophotonics · 2019 · PMC7065633 · PMID 30168296

Europe PMC DOI

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may not be significantno p-value reported

The colorimetric methods have advantages in cost and ease of use, but the colour changes sometimes may not be significant enough for RGB differences calculations, thereby limiting the sensitive material choices.

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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.