Craniocerebral TraumaHead Injuries, PenetratingBombsWounds, GunshotForeign BodiesSkull FracturesGlasgow Outcome ScaleGlasgow Coma ScaleDebridementBrain InjuriesSkullTrauma CentersMultiple TraumaMedlinePlusBrain ConcussionAthletic InjuriesHockeyGross Domestic ProductFootballNational Library of Medicine (U.S.)