Development and Validation of Machine Models Using Natural Language Processing to Classify Substances Involved in Overdose Deaths Posted on August 23, 2022 By sdargoltz David Goodman-Meza, MD; Chelsea L. Shover, PhD; Jesus A. Medina, MD; Amber B. Tang, MD; Steven Shoptaw, PhD; Alex A. T. Bui, PhD JAMA Netw Open; 5(8); 2022 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Toxicology