Psychological (structural) vulnerabilities and the specific appeal of narcotics.
D000328:Adult; D000339:Affect; D000374:Aggression; D003674:Defense Mechanisms; D006556:Heroin Dependence / Q000523:psychology*; D006801:Humans; D008297:Male; D009293:Opioid-Related Disorders / Q000523:psychology; D011573:Psychoanalytic Interpretation