1. US Department of Justice, Federal Bureau of Investigation. A study of active shooter incidents in the United States between 2000 and 2013. https://www.fbi.gov/file-repository/active-shooter-study-2000-2013-1-1.pdf/view. Accessed August 1, 2016.
2. Incorporating Active Shooter Planning into Health Care Facility Emergency Operations Plans. US Department of Health and Human Services. http://www.phe.gov/preparedness/planning/Documents/active-shooter-planning-eop2014.pdf. Published 2014. Accessed August 1, 2016.
3. Active shooter planning and response in a healthcare setting. Healthcare and Public Health Sector Coordinating Council, Federal Bureau of Investigation. https://www.fbi.gov/filerepository/active_shooter_planning_and_response_in_a_healthcare_setting_2 015.pdf/view. Published April 2015. Accessed August 1, 2016.
4. Norris WA , Wollert TN . Stress and Decision Making. Federal Law Enforcement Training Center. https://www.fletc.gov/sites/default/files/imported_files/reference/research-papers/Stress-and-Decision-Making-04-06-12--Approved---Pulic-Release--508-Accessible.pdf. Published July 11, 2011. Accessed August 1, 2016.
5. Hospital-Based Shootings in the United States: 2000 to 2011