RESOURCES: Full list of health-related journals where we can submit. Protocol and abstracts from this project (and its database): Original Protocol (docx). (Good background for intro and good reference list.) 2014 ACSM Abstract (pdf). 2014 NATA Abstract (pdf). Data Dictionary (docx). Diagnosis Codes (jpg). Neuropsychological ImPACT Symptoms Table (docx). Sport Codes (jpg). imPACT test result example (gif). Validity and normative data for the tests used: ImPACT test normative data. ImPACT test user manual. Graded Symptoms Checklist. SCAT-3 Evaluation Tool. Kamphaus et al. (2011). BASC-2 student. Kirk et al. (2014). BASC validity. PDFs for background research: CDC youth concussion fact sheet (2015). Daneshvar et al. (2011). Epidemiology of sport-related concussion. Harmon et al. (2012). American Medical Society position statement. Makdissi et al. (2013). Evaluating concussions by group. Makdissi et al. (2013). Qualitative concussion management for persistent symptoms. McCroy et al. (2005). Neuropsychological testing in football. McCroy et al. (2013). Concussion consensus. Sahler et al. (2012). TBI in sports. Williams et al. (2015). Meta analysis concussion recovery time.