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Photos of the Week

New Medical Technology

Dr James Kinross, lecturer in surgical metabonomics of Imperial College London uses the the experimental knife on a piece of animal muscle during a demonstration at St Mary's Hospital in London, Wednesday, July 17, 2013. Surgeons may have a new way to smoke out cancer. An experimental surgical knife can help surgeons make sure they've removed all the cancerous tissue, doctors reported Wednesday. Surgeons typically use knives that vaporize tumors as they cut, producing a sharp-smelling smoke. The new knife analyzes the smoke and can instantly signal whether the tissue is cancerous or healthy.(AP Photo/Sang Tan)

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