Assertion: concussion | /r/CapableOf | call mild traumatic head injury
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Sometimes called a mild brain injury, a mild traumatic head injury, or a mild traumatic brain injury, a concussion occurs when a blow to the head causes physical trauma to the brain.
text: Sometimes called a mild brain injury, a mild traumatic head injury, or a mild traumatic brain injury, a concussion occurs when a blow to the head causes physical trauma to the brain.