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"London, Sep 17 (ANI): If at all there's life on Mars, we are more likely to smell it before we see it. A new study has suggested that a chemical involved in bad breath and flatulence in humans may lead us to alien microbes on the Red Planet."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oneindia.com/2010/09/17/badbreath-fart-sniffer-to-hunt-for-life-onmars.html>