title: Narcotic addiction and perceived locus of control.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006556:Heroin Dependence / Q000534:rehabilitation / Q000628:therapy; D006801:Humans; D007389:Internal-External Control; D008297:Male; D008691:Methadone / Q000627:therapeutic use; D008875:Middle Aged; D010551:Personality; D011581:Psychological Tests; D012649:Self Concept; D013997:Time Factors
chemical_list: D008691:Methadone