A machine that can 'smell' cancer

www.cnn.com Published: July 16, 2014
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It's the second most common cancer for men worldwide, but prostate cancer remains difficult to diagnose, with standard blood tests criticized for delivering a high rate of false positives.



But in a study presented in May this year, trained detection dogs were able to identify prostate cancer from a few sniffs of a urine sample with a staggering 98% accuracy, with few false positives. Although the study is by no means conclusive, it joins a growing body of research suggesting dogs could be able to smell out cancers.

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