Understanding the Behavioral and Emotional Consequences of Child Abuse
Pediatrics, Vol. 122 No. 3 September 2008, pp. 667-673
http://pediatrics.aappublications.org/cgi/content/full/122/3/667
"Children who have suffered early abuse or neglect may later present with significant behavior problems including emotional instability, depression, and a tendency to be aggressive or violent with others..."