Tackling the brain: Clues emerge about the pathology of sports-related brain trauma

CTE has been a flash point in the debates over whether professional football puts players at risk for neurological disease, ever since pathologist Bennet Omalu first reported the pathology in a retired National Football League (NFL) player. More than ten years later, the inability to diagnose the brain condition during life or ascribe to it specific causes or clinical symptoms add to the contention.
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