Mayo Clinic
Mayo Clinic: Concussion
What is a concussion? Find out the causes, symptoms, diagnosis, tests, risk factors, and more. Each of these main topics are discussed in the article.
Curated OER
Kids Health: Concussions: What to Do
Concussions usually result from a sports related injury or accident. Find out more about this serious condition, how they are treated, and how to prevent them. The site also includes links to similar sites.