The Influence of Concussion on Persistent Post-Concussive Emotional, Somatic, & Neurocognitive Symptoms: Implications for Assessment & Treatment in Veterans based on whether the recency and number of lifetime concussions had a sustained impact on emotional, somatic, and cognitive functioning in a sample of U.S. Marines, accounting for deployment stress and symptoms of depression and PTSD. This dataset is no longer supported and is provided as-is. Any historical knowledge regarding meta data or it's creation is no longer available. All known information is proved as part of this data set.