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Can dogs really detect cancer?

Small town in Japan with high mortality rate tests urine-smelling method

A trained dog can detect cancer in a patient's urine. (Courtesy of town of Kaneyama)

TOKYO -- A small town in northeastern Japan is testing a new cancer-detection method with the help of dogs. The effort led by the local government is drawing attention from the medical world and municipalities across the country.

"Do you consent to taking a test with the cancer-detection dog?" a public-health nurse asked a resident in the town of Kaneyama, Yamagata Prefecture, who came to a municipality-organized medical checkup in May. 

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