title: Three positive shifts away from marijuana use, 1979-1988.
authors.affiliation: Brigham Young University, Deckerville, MI 48427.
authors.forename: T R
authors.initials: TR
authors.lastname: Okrie
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008385:Marijuana Smoking / Q000453:epidemiology* / Q000523:psychology; D014481:United States