1. Centers for Disease Control and Prevention, and National Center for Health Statistics (2022, September 23). Multiple Cause of Death 1999–2016 on CDC WONDER Online Database. Data are from the Multiple Cause of Death Files, 1999–2016, as compiled from data provided by the 57 vital statistics jurisdictions through the Vital Statistics Cooperative Program, Available online: http://wonder.cdc.gov.
2. U.S. Department of Health and Human Services (2022, August 29). HHS Acting Secretary Declares Public Health Emergency to Address National Opioid Crisis, Available online: https://public3.pagefreezer.com/browse/HHS.gov/31-12-2020T08:51/https:/www.hhs.gov/about/news/2017/10/26/hhs-acting-secretary-declares-public-health-emergency-address-national-opioid-crisis.html.
3. Spencer, M.R., Garnett, M.F., and Miniño, A.M. (2022, August 29). Urban–rural differences in drug overdose death rates, 2020, Available online: https://stacks.cdc.gov/view/cdc/118601.
4. Ahmad, F.B., Cisewski, J.A., Rossen, L.M., and Sutton, P. (2022, August 29). Provisional drug overdose death counts, Available online: https://www.cdc.gov/nchs/nvss/vsrr/drug-overdose-data.htm.
5. Monnat, S., and Rigg, K. (2018). The opioid crisis in rural and Small Town America. Carsey Res., 135.