title: "The Nam" and "The World". Heroin use by U.S. Army enlisted man serving in Vietnam.
mesh_terms: D000328:Adult; D001290:Attitude; D001887:Boredom; D003417:Criminal Psychology; D004526:Efficiency; D006556:Heroin Dependence / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D007398:Interpersonal Relations; D008890:Military Psychiatry; D010379:Peer Group; D012919:Social Behavior; D012925:Social Conformity; D013315:Stress, Psychological; D014744:Vietnam; D014857:Warfare