david dodick, md, neurologist, mayo clinic; chairman, american migraine foundation. . .
chronic traumatic encephalopathy (cte), a degenerative brain disease, has been linked by medical researchers to the sort of hits football players endure. .
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david dodick, md, neurologist, mayo clinic; chairman, american migraine foundation. . .
chronic traumatic encephalopathy (cte), a degenerative brain disease, has been linked by medical researchers to the sort of hits football players endure. .
218 Used Today
200 Used Today