"Conclusive evidence" and marihuana.
D001921:Brain / Q000187:drug effects; D001927:Brain Diseases / Q000139:chemically induced; D002188:Cannabis / Q000009:adverse effects; D003071:Cognition / Q000187:drug effects; D006801:Humans; D007880:Legislation, Drug; D010465:Perception / Q000187:drug effects; D019966:Substance-Related Disorders