1. CDC. Web-based Injury Statistics Query and Reporting System (WISQARS). Atlanta, GA: CDC; 2016. https://www.cdc.gov/injury/wisqars/index.html
2. The National Violent Death Reporting System: overview and future directions.;Blair;Inj Prev,2016
3. Institute of Medicine. Reducing the burden of injury: advancing prevention and treatment. Washington DC: National Academies Press; 1999. https://www.nap.edu/read/6321
4. US Census Bureau. QuickFacts: United States. https://www.census.gov/quickfacts/
5. The world report on violence and health.;Krug;Lancet,2002