Schulich School of Medicine & Dentistry professor Hon Leong has developed a new blood test which could detect the potential for prostate cancer earlier. Thousands of men face a prostate biopsy following higher-than-normal results from their annual prostate-specific antigen (PSA) test, the traditional screening for prostate cancer. But recent studies have shown three in four of these biopsies were unnecessary, leading to 165,000 unnecessary procedures and 6,930 related hospitalizations each year.
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