Inclusion Criteria:  Charts were extracted from a group of 212 of patients with a history of concussion to a final chart review size of 67. These patients had specifically sought of CST to address symptoms of Post Concussion Syndrome.  Exclusion Criteria:  Was determined for the 2nd part of study: Post Treatment Outcome Survey. Final group size of 47 excluded those under age 14 and those with confounding medical or personal issues or involved in litigation.