1. Fast Facts- All Injuries. Centers for Disease Control and Prevention. Available from: http://www.cdc.gov/nchs/fastats/injury.htm. Accessed December 17, 2014.
2. State-specific, racial and ethnic heterogeneity in trends of firearm-related fatality rates in the USA from 2000 to 2010;Kalesan;BMJ Open,2014
3. Reducing firearm-related injuries and deaths in the United States: Executive summary of a policy position paper from the American College of Physicians reducing firearm-related injuries and deaths in the United States;Butkus;Ann Intern Med,2014
4. Firearm injuries as a public health issue;Steinbrook;JAMA Intern Med,2013
5. Lancaster Country Quick Facts.Available from: http://quickfacts.census.gov/qfd/states/42/42071.html. Accessed December 18, 2014.