News Author: D. BrauserCME Author: Laurie Barclay, MDAuthors and DisclosuresCME Released: 11/23/2011; Valid for credit through 11/23/2012Clinical ContextFindings of epidemiologic Studies have suggested that cannabis use may increase the Risk for the development of Schizophrenia. In Japan, there is a long history of clinical studies suggesting that Methamphetamine exposure may cause a persistent