Potential 'universal' blood test for cancer discovered

A simple blood test that can be used to diagnose whether people have cancer or not has been devised by researchers. The test will enable doctors to rule out cancer in patients presenting with certain symptoms, saving time and preventing costly and unnecessary invasive procedures such as colonoscopies and biopsies being carried out. Alternatively, it could be a useful aid for investigating patients who are suspected of having a cancer that is currently hard to diagnose.

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