O’Donnell, J., Gladden, R. M., Goldberger, B. A., Mattson, C. L., & Kariisa, M. (2020). Notes from the Field: Opioid-Involved Overdose Deaths with Fentanyl or Fentanyl Analogs Detected — 28 States and the District of Columbia, July 2016–December 2018. MMWR Morb Mortal Wkly Rep.

O’Donnell, Julie, R. Matt Gladden, Bruce A. Goldberger, Christine L. Mattson, and Mbabazi Kariisa. "Notes From the Field: Opioid-Involved Overdose Deaths With Fentanyl or Fentanyl Analogs Detected — 28 States and the District of Columbia, July 2016–December 2018." MMWR Morb Mortal Wkly Rep 2020.

O’Donnell, Julie, et al. "Notes From the Field: Opioid-Involved Overdose Deaths With Fentanyl or Fentanyl Analogs Detected — 28 States and the District of Columbia, July 2016–December 2018." MMWR Morb Mortal Wkly Rep 2020.