Assertion: concussion's effect | /r/HasProperty | cumulative
Facets:
value: in athletes
type: LOCATION
Source sentences:
text: Concussions have a cumulative effect.
text: The effects of a concussion are cumulative in athletes who return to play prior to complete recovery.
text: Experts note that concussions have a cumulative effect on the brain, which can cause brain swelling, permanent brain damage or even death.