Assertion: concussion's symptom | /r/HasProperty | subconcussive injury
Facets:
Source sentences:
text: Active research is currently underway to study the effects of repeated head injuries that don't cause symptoms (subconcussive injury).
text: Active research is currently underway to study the effects of repeated head injuries that don't cause symptoms (subconcussive injury).
text: Active research is currently underway to study the effects of repeated head injuries that don't cause symptoms (subconcussive injury).
text: Active research is currently underway to study the effects of repeated head injuries that don't cause symptoms (subconcussive injury).