title: Locus of control in narcotic addicts: state or trait phenomenon?
mesh_terms: D000293:Adolescent; D004777:Environment; D003932:Heroin; D006801:Humans; D007389:Internal-External Control; D008019:Life Style; D008297:Male; D010551:Personality; D010552:Personality Assessment; D011330:Prisons; D011581:Psychological Tests; D012112:Residential Facilities; D012649:Self Concept; D019966:Substance-Related Disorders / Q000628:therapy
chemical_list: D003932:Heroin