title: [Cannabis can double the risk of schizophrenia. Increasing but still controversial knowledge of the psychological effects of the drug].
authors.affiliation: Samhällsmedicin i Stockholms läns landsting, epidemiologiska enheten, Norrbacka, Stockholm. Peter.Allebeck@phs.ki.se
authors.forename: Peter
authors.initials: P
authors.lastname: Allebeck
mesh_terms: D006801:Humans; D002189:Marijuana Abuse / Q000150:complications*; D008385:Marijuana Smoking / Q000009:adverse effects*; D011605:Psychoses, Substance-Induced / Q000209:etiology*; D012307:Risk Factors; D012559:Schizophrenia / Q000209:etiology*