Centers for Disease Control and Prevention, National Center for Injury Prevention and Control. Web-based Injury Statistics Query and Reporting System (WISQARS) [online]. (2005) [cited 2012 Dec. 20].
 Uniform Crime Reports, FBI, 2011. An aggravated assault is an unlawful attack with the purpose of inflicting severe or aggravated bodily injury and using a weapon or means of inflicting severe harm, including assaults or attempts to kill or murder, assault with a deadly weapon, and mayhem. Law enforcement agencies in 46 states and DC submitted sufficient data for analysis — NY, IL, HI, and MS did not.
SOURCE Mayors Against Illegal Guns