A longitudinal study of normal adolescent boys.
D000293:Adolescent; D000328:Adult; D002188:Cannabis; D006801:Humans; D008297:Male; D010287:Parent-Child Relations; D010553:Personality Development; D000297:Psychology, Adolescent; D011822:Race Relations; D012380:Role; D012649:Self Concept; D012725:Sexual Behavior; D012940:Social Problems; D019966:Substance-Related Disorders