MercoPress http://en.mercopress.com/ South Atlantic News Agency en Copyright 2013, MercoPress. http://en.mercopress.com/web/img/en/mercopress-logo.gif MercoPress http://en.mercopress.com/ <![CDATA[Trained dogs can sniff early signs of certain cancers, says Japanese study]]> A Labrador retriever completed a round of sniffing tests over several months Specially trained dogs may be able to sniff out early signs of colorectal cancer in breath or stool samples, according to a new study.

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