| D001924 |
Brain Concussion |
A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418) |
Cerebral Concussion,Commotio Cerebri,Concussion, Intermediate,Concussion, Mild,Concussion, Severe,Mild Traumatic Brain Injury,Brain Concussions,Cerebral Concussions,Concussion, Brain,Concussion, Cerebral,Intermediate Concussion,Intermediate Concussions,Mild Concussion,Mild Concussions,Severe Concussion,Severe Concussions |
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| D002170 |
Canada |
The largest country in North America, comprising 10 provinces and three territories. Its capital is Ottawa. |
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| D005538 |
Football |
A competitive team sport played on a rectangular field.This is the American version of the game. It does not include non-North American football ( |
American Football,Football, American |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D001265 |
Athletic Injuries |
Injuries incurred during participation in competitive or non-competitive sports. |
Sports Injuries,Injuries, Athletic,Injuries, Sports,Athletic Injury,Injury, Athletic,Injury, Sports,Sports Injury |
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| D014481 |
United States |
A country in NORTH AMERICA between CANADA and MEXICO. |
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| D014495 |
Universities |
Educational institutions providing facilities for teaching and research and authorized to grant academic degrees. |
University |
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