Jan. 31, 2008
By Alix Spiegel
A new study of traumatic brain injury finds a strong association between concussions and post-traumatic stress disorder (PTSD). The findings were based on reviews of more than 2,000 soldiers.
Copyright 2008. Used with permission from NPR.
Please sign up below for important news about the work of 顶级国产视频 and special event invitations.
