A simple blood test could make a world of difference for people who have traumatic brain injuries, a new UCSF study shows.

Dr. Geoff Manley, Professor and Vice Chairman of Neurological Surgery at UCSF discusses with KCBS Radio's Kathy Novak.

<p>A simple blood test could make a world of difference for people who have traumatic brain injuries, a new UCSF study shows.</p>
<p>Dr. Geoff Manley, Professor and Vice Chairman of Neurological Surgery at UCSF discusses with KCBS Radio's Kathy Novak.</p>

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