We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleTests of causal linkages between cannabis use and psychotic symptoms.AuthorsFergusson, David M; Horwood, L John; Ridder, Elizabeth MAbstractTo examine possible causal linkages between cannabis use and psychosis using data gathered over the course of a 25-year longitudinal study.PublicationAddiction (Abingdon, England), 2005, Vol 100, Issue 3, p354ISSN0965-2140Publication typeJournal ArticleDOI10.1111/j.1360-0443.2005.01001.x