A tissue biopsy has long been the preferred method for detecting or monitoring the progress of a cancer disease, but its shortcomings - it's both invasive and restricted to a limited region - have led to the development of liquid biopsy based on a simple blood test. I speak with Irena Hudecova, a Slovak scientist working in conjunction with Cambridge University in this fast-growing field.
hudecova - liquid biopsy
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Jonathan McCormick, Photo: Flickr/Qiagen