title: Peer-observed psychotherapy with institutionalized narcotic addicts.
mesh_terms: D000328:Adult; D006760:Hospitalization; D006801:Humans; D007629:Kentucky; D008297:Male; D008875:Middle Aged; D009294:Narcotics; D010379:Peer Group; D011613:Psychotherapy; D011615:Psychotherapy, Group; D019966:Substance-Related Disorders / Q000628:therapy*
chemical_list: D009294:Narcotics