Urinary Acrylonitrile Metabolite Concentrations Before and after Smoked, Vaporized, and Oral Cannabis in Frequent and Occasional Cannabis Users Posted on February 4, 2022February 4, 2022 By Becky Carter David L. Ashley, Víctor R. De Jesús, Osama A. Abulseoud, Marilyn A. Huestis, Daniel F. Milan and Benjamin C. Blount International Journal of Environmental Research and Public Health; 17(18); 2020 Access article Cannabis and Cannabinoids, Seized Drugs/Controlled Substances, Toxicology