Rapid changes in illegally manufactured fentanyl products and prices in the United States Posted on July 11, 2022July 11, 2022 By sdargoltz Beau Kilmer, Bryce Pardo, Toyya A. Pujol, Jonathan P. Caulkins Addiction; 2022 Access article Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Toxicology