Comparative harms assessments for cannabis, alcohol, and tobacco: Risk for psychosis, cognitive impairment, and traffic accident Posted on October 27, 2022October 27, 2022 By sdargoltz Petter Grahl Johnstad Drug Sci Policy Law; 8; 2022 Access article Alcohol, Cannabis and Cannabinoids, Chemistry, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Toxicology