1. Ahmad, F. B., Rossen, L. M., & Sutton, P. (2021). Provisional drug overdose death counts. National Center for Health Statistics. Accessed August 3, 2021, https://www.cdc.gov/nchs/nvss/vsrr/drug-overdose-data.htm#references.
2. Management of opioid analgesic overdose;Boyer;New England Journal of Medicine,2012
3. Exposure to fentanyl-contaminated heroin and overdose risk among illicit opioid users in Rhode Island: A mixed methods study;Carroll;International Journal on Drug Policy,2017
4. Center for Behavioral Health Statistics and Quality. Results from the 2019 National Survey on Drug Use and Health: Detailed tables. Substance Abuse and Mental Health Services Administration. Accessed May 3, 2021, https://www.samhsa.gov/data.
5. Centers for Disease Control and Prevention. (2013). Prescription Drug Overdose Data & Statistics. Guide to ICD-9-CM and ICD-10 Codes Related to Poisoning and Pain. Atlanta, GA.