Dogs Smell Cancer in Patients' Breath, Study Shows

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In this National Geographic News article, read about how ordinary household dogs with only a few weeks of basic "puppy training" learned to accurately distinguish between breath samples of lung- and breast-cancer patients and healthy subjects. Early detection of cancers greatly improves a patient's survival chances, and researchers hope that man's best friend, the dog, can become an important tool in early screening. Links to other stories, photos and videos are also found on this page.

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