Assertion: concussion | /r/CapableOf | affect more than 1.7 million people
Facets:
value: in the united states
type: LOCATION
value: annually
type: TEMPORAL
Source sentences:
text: Researchers at the University of Pittsburgh School of Medicine said their findings should prompt a re-evaluation of the long-term effects of concussion, which affects more than 1.7 million people in the United States annually.