Study shows concussions may cause lingering symptoms in children

From Reuters (3/5):

Children who suffered a concussion were more likely to have somatic and cognitive symptoms, compared with children with other types of injuries, according to a study in the Archives of Pediatrics & Adolescent Medicine. An estimated 10% to 15% of children who experienced loss of consciousness still had cognitive problems for months after the injury, the lead researcher said.

http://www.reuters.com/article/2012/03/05/us-kids-concussions-idUSTRE8241TQ20120305