I found out it from "News of the Weird":
Researchers at England's Cambridge University, and others in Tallahassee,Fla., and Cleveland, are training dogs to screen patients for prostate and lung cancers by detecting distinct smells of tumors in patients' breath. One researcher reported a success rate of 87 percent, which rivals that of some expensive technology. (The genesis of the research was a 1989 journal article reporting that a border collie attacked a woman's mole that turned out to be a malignant melanoma and ignored her after the mole was removed.) [ABC
News, 6-11-02]
I thought it was quite interesting and want to share. It seems that interaction between Dogs-Humans have found a new way.
Koxa's Human
PS: Maybe I should post it at "Dog Health"
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