Assertion: concussion | /r/HasProperty | a closed-head injury
Facets:
Source sentences:
text: Two of the most frequently occurring conditions in the head and neck area are whiplash (a particular neck injury from high velocity forces) and concussion (a closed-head injury, sometimes called mild traumatic brain injury).
text: Concussions might also be referred to as a "mild traumatic brain injury" or a “closed head injury.