title: Marijuana use starting in youth linked to IQ loss.
authors.forename: Bridget M
authors.initials: BM
authors.lastname: Kuehn
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D003072:Cognition Disorders / Q000139:chemically induced*; D005500:Follow-Up Studies; D006801:Humans; D007360:Intelligence / Q000187:drug effects*; D008385:Marijuana Smoking / Q000009:adverse effects*; D009483:Neuropsychological Tests; D009520:New Zealand; D055815:Young Adult