In terms of what has come to be expected at past NFL meetings, what will transpire Tuesday in the conference rooms at a hotel near O'Hare Airport figures to be markedly different than any other get-together the league has ever convened.
Just consider some of the esoteric sessions among the more than one dozen agenda items:
Does concussion lead to pugilistic dementia and Alzheimers?
The role of neuropsychological testing in return-to-play decisions.
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