title: Teen perceptions of marijuana risks shift: use of alcohol, illicit drugs, and tobacco declines.
authors: Bridget M
authors: BM
authors: Kuehn
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D001294:Attitude to Health; D003625:Data Collection; D006801:Humans; D013287:Illicit Drugs; D008385:Marijuana Smoking / Q000453:epidemiology* / Q000523:psychology*; D012907:Smoking / Q000453:epidemiology / Q000523:psychology; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000523:psychology; D014481:United States / Q000453:epidemiology
chemical_list: D013287:Illicit Drugs