1. Homicide, Suicide, and Unintentional Firearm Fatality: Comparing the United States With Other High-Income Countries, 2003
2. National Center for Health Statistics (2016) Health, United States, 2015: With Special Feature on Racial and Ethnic Disparities (National Center for Health Statistics, Hyattsville, MD).
3. Braga AA (2013) Open letter to the Biden Commission. Available at urbanlabs.uchicago.edu/attachments/store/87d0b65482039c9b4c44fa426e57bcc49ecd1929c1c1e0edc65218cc4eb7/Biden+Commission+letter_20130110_final.pdf. Accessed October 23, 2017.
4. Handgun waiting periods reduce gun deaths
5. Olsen M (1965) The Logic of Collective Action: Public Goods and the Theory of Groups (Harvard Univ Press, Cambridge, MA).