'The phrase "head injury" can mean different things to different people; when an emergency doctor talks about "minor head injury", we mean those injuries to the head that result in any of the following:
* a period of unconciousness
* a change in behavior
* significant headache
Another term sometimes used for "minor head injury" is "concussion". Any one of these symptoms means that your child has experienced a minor head injury (at least) and needs to be assessed immediately...'
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