1. US Centers for Disease Control and Prevention. Vital statistics rapid release; provisional drug overdose death counts. 2020. https://www.cdc.gov/nchs/nvss/vsrr/drug-overdose-data.htm. Accessed 22 Sept 2020).
2. Hedegaard H, Miniño AM, Warner M. Drug overdose deaths in the United States, 1999–2018.pdf icon NCHS Data Brief, no 356. National Center for Health Statistics.: Hyattsville, MD; 2020.
3. McLellan AT, Lewis DC, O’Brien CP, Kleber HD. Drug dependence, a chronic medical illness: implications for treatment, insurance, and outcomes evaluation. JAMA. 2000;284:1689–95.
4. Florence CS, Zhou C, Luo F, Xu L. The economic burden of prescription opioid overdose, abuse, and dependence in the United States, 2013. Med Care. 2016;54(10):901–6.
5. Council of Economic Advisers (CEA). The underestimated cost of the opioid crisis: executive summary. Washington, DC: Council of Economic Advisers (CEA); 2017. whitehouse.gov/sites/whitehouse.gov/files/images/The Underestimated Cost of the Opioid Crisis.pdf. Accessed 28 Feb 2018.