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SCIENCE STUDIO: Brain Tumors and Junk DNA

  Keith talks with Nino Chiocca, MD, PhD, Professor of Neurosurgery at Harvard Medical School, and Chairman of the Brigham and Women's Hospital.  Chiocca talks about the different kinds of tumors that may affect the brain and why not all of them are malignant.  He also talks about the role that "junk" DNA plays in the development of brain tumors.

Aired Oct. 13, 2013.

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