title: Cannabis: psychological effects of chronic heavy use. A controlled study of intellectual functioning in chronic users of high potency cannabis.
mesh_terms: D000328:Adult; D000428:Alcohol Drinking; D000704:Analysis of Variance; D002188:Cannabis / Q000494:pharmacology / Q000633:toxicity*; D003210:Concept Formation / Q000187:drug effects; D005260:Female; D006801:Humans; D007360:Intelligence / Q000187:drug effects*; D007563:Jamaica; D008297:Male; D008568:Memory / Q000187:drug effects; D011581:Psychological Tests; D011674:Pulse; D011930:Reaction Time; D019966:Substance-Related Disorders; D011795:Surveys and Questionnaires; D013997:Time Factors