A scent-trained dog was able to identify the presence or absence of thyroid cancer in human urine samples 88.2 percent of the time, a new study concluded. The study out of the University of Arkansas for Medical Sciences (UAMS) gathered urine samples from 34 university thyroid clinic patients before they underwent a biopsy for suspicion of thyroid cancer. Fifteen of those biopsies came back positive for thyroid cancer, while the remaining 19 were diagnosed as benign thyroid disease.
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