You may find further information at these websites:
The Concussion Legacy Foundation 
American College of Sports Medicine Information on Concussions
Unite States Brain Injury Alliance
Center for Disease Control and Prevention 
ImPACT Testing and Computerized Neurcognitive Assessment Tools  
Mayo Clinic Concussion 
National Dizzy and Balance Center 
National Institute of Health Concussions 
Traumatic Brain Injury Education
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