"We knew it existed in boxing, but we didn't know it was living amongst us ... "
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Produced by Noel Gunther and Brian King, BrainLine.
About the author: Ann McKee, MD
Ann McKee, MD is the chief neuropathologist for the Framingham Heart Study and the Boston University-based Centenarian Study. She is also the chief neuropathologist for the Boston-based Veterans Administration Medical Centers and for the Sports Legacy Institute.