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[VOA慢速] VOA慢速精精听2019-02-04

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The tubes are then sent to OWLSTONE laboratory, there, researchers examine the XXXX in the breath.
Those VOC as they are known, are produced by the body’s normal chemical processes. However, change a chemical activity can produce particular markings.
And those marking can be biomarkers, providing evident of diseases. Some biomarkers may show evident of cancer in the early stages. Cancer develops in stages. The earlier cancer is   identified, the greater the chance of survive.
One of the owlstone founder is BILLY, he said cancer often appear or as he said, present itself after it has spread.
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