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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"there may be subtle differences (between animals and humans) that we don't know about," klein said.
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scott cadger, head of underwriting and claims strategy at scottish widows, said the industry needed to do more to educate the public on the merits of protection insurance.
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