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An end to invasive biopsies? A simple, inexpensive blood test could diagnose a wide array of diseases including cancers, liver diseases, immune disorders and more. Israa Sharkia preparing blood samples for DNA sequencing. Photo courtesy of Hebrew University of Jerusalem Nobody enjoys getting a biopsy, where a tissue sample is surgically taken and analyzed in a lab for signs of disease such as cancer. It’s not only unpleasant for the patient, but also has clinical drawbacks: a biopsy doesn’t always extract the diseased tissue and isn’t helpful in detecting disease at early stages. These concerns have encouraged researchers to find less invasive and more accurate diagnostic methods. ....