1. Opioid prescriptions soar: increase in legitimate use as well as abuse;Kuehn;JAMA,2007
2. Opioid epidemic in the United States;Manchikanti;Pain Physician,2012
3. Trends in opioid analgesic abuse and mortality in the United States;Dart;N Engl J Med,2015
4. An epidemic of the use, misuse and overdose of opioids and deaths due to overdose, in the United States and Canada: is Europe next?;Helmerhorst;Bone Joint J,2017
5. Centers for Disease Control and Prevention. U.S. opioid dispensing rate maps | drug overdose | CDC Injury Center. 2020. Available at: https://www.cdc.gov/drugoverdose/maps/rxrate-maps.html. Accessed February 14, 2022.