title: General and specific perceived locus of control in heroin addicts.
mesh_terms: D000293:Adolescent; D000328:Adult; D000437:Alcoholism / Q000175:diagnosis; D006556:Heroin Dependence / Q000175:diagnosis; D006801:Humans; D007389:Internal-External Control; D008297:Male; D011581:Psychological Tests; D012649:Self Concept; D012919:Social Behavior; D019966:Substance-Related Disorders / Q000175:diagnosis; D013781:Texas