Concussion: From a "Ding" to Mild Traumatic Brain Injury

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Harvey Levin, a professor at Baylor College of Medicine, defines the levels of brain injury. He also discusses the increasing numbers of head injuries and recovery period.

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Jim Orr says:

So complete and inspirational. Thank you for creating and posting.

Fitz says:

This guy will still be at it when he's 85…

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