Our four part series on TBI, PTSD and CTE finishes with a special interview recorded in coordination and collaboration with Coming Home Well a 501C3 veterans non-profit in Virginia. Libby sat down with Dr Dan Perl in May 2020 to discuss his important research at Uniformed Services University. Dr Perl is the Director of the CNRM Brain Tissue Repository. **The U.S. Department of Defense has established a brain tissue repository as an important resource to advance traumatic brain injury research...