1. CDC Childhood Injury Report: Patterns of Unintentional Injuries among 0 -19 Year Olds in the United States, 2000-2006;Borse,2008
2. Centers for Disease Control and Prevention, National Center for Health Statistics. (2008). VitalStats. http://www.cdc.gov/nchs/vitalstats.htm[Accessed: Aug 10, 2008]. Atlanta: Author.
3. The NEISS sample: design and implementation;U.S. Consumer Product Safety Commission,2000
4. World report on child injury prevention;World Health Organization, United Nations Children's Fund [WHO/UNICEF],2008