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A concussion is a brain injury that may result in a bad headache. altered levels of alertness, or unconsciousness. See also: Concussion - first aid
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Concussion is a trauma-induced change in mental status, with confusion and amnesia , and with or without a brief loss of consciousness.
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Concussion is a trauma-induced change in mental status, associated with confusion and amnesia, that may or may not be accompanied by a brief loss of consciousness.
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Concussion is a trauma-induced change in mental status, with confusion and amnesia, and with or without a brief loss of consciousness.
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