Overdose Deaths Involving Para-fluorofentanyl — United States, July 2020–June 2021 Posted on November 1, 2022November 7, 2022 By Becky Carter Jessica Bitting, MS; Julie O’Donnell, PhD; Christine L. Mattson, PhD MMWR; 71(39); September 30, 2022 Access article Forensic Pathology and Medicolegal Death Investigation, Statistics and Data Analysis, Toxicology Tags:MMWR