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Device extracts rare tumor cells using sound

A simple blood test may one day replace invasive biopsies thanks to a new device that uses sound waves to separate blood-borne cancer cells from white blood cells.

Carnegie Mellon University President Subra Suresh and fellow researchers from the Massachusetts Institute of Technology and The Pennsylvania State University report the latest advancement that brings their device one step closer to clinical use in a paper published this week in the online early edition of the Proceedings of the National Academy of Sciences (PNAS).

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