Assertion: concussion's symptom | /r/CapableOf | linger for month
Facets:
value: in some children
type: LOCATION
value: according to past research
type: OTHER
Source sentences:
text: Symptoms of a concussion may last less than a day or may linger for months, or longer.
text: And according to past research, symptoms can linger for up to a month in some children who have experienced a concussion.