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2. University of Michigan Injury Prevention Center. System for opioid overdose surveillance (SOS). 2020. http://injurycenter.umich.edu/opioid-overdose/opioid-surveillance/.
3. Overdose Detection Mapping Application Program. User stories: ODMAP in action. http://www.odmap.org/.
4. Substance Abuse and Mental Health Services Administration. Opioid Treatment Program (OTP) Guidance. Updated 19 Mar 2020. https://www.samhsa.gov/sites/default/files/otp-guidance-20200316.pdf.
5. Goldberg D, Ehley B. Biden’s other health crisis: a resurgent drug epidemic. Politico 2020 Nov 28. https://www.politico.com/news/2020/11/28/bidens-other-health-crisis-a-resurgent-drug-epidemic-440771.