1. Webster Dictionary. Knife definition. Available at: http://www.webster-dictionary.net/definition/knife. Accessed June 24, 2011.
2. Toolbox Talks. Topic: Knife safety. Available at: http://safety.cat.com/toolbox. Accessed June 24, 2011.
3. Age 14 starts a child’s increased risk of major knife or gun injury in Washington, DC;Freed;J Natl Med Assoc,2004
4. The stabbed wounds as a cause of injuries of different parts of the body;Goniewicz;Ann Univ Mariae Curie Sklodowska Med,2004
5. Penetrating trauma in Ontario emergency departments: a population-based study;Macpherson;CJEM,2007