Assertion: concussion's symptom | /r/CapableOf | persist for year
Facets:
value: in approximately 15% of people
type: OTHER
value: in rare cases
type: TEMPORAL
Source sentences:
text: In rare cases, symptoms can persist for a year or more after a person has suffered a concussion.
text: When properly managed, the majority of concussion symptoms will resolve within a couple of weeks, however over-exertion of brain cells during recovery can cause symptoms to persist for months or even years.
text: In approximately 15% of people, symptoms may persist for years or be permanent.