Assertion: concussion's symptom | /r/HasProperty | absent
Facets:
value: at every stage of the recovery
type: TEMPORAL
value: for 24 hours
type: TEMPORAL
value: before the injury
type: TEMPORAL
Source sentences:
text: These symptoms must be present for three months after the injury and must have been absent or less severe before the injury.
text: The ECB's code is currently the most robust, requiring that "all symptoms need to be absent for 24 hours" at every stage of the recovery, which adds up to a minimum of six days' rest.