title: The effectiveness of nonprofessional therapists with chronic, psychotic patients: an experimental study.
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D005069:Evaluation Studies as Topic; D005260:Female; D006760:Hospitalization; D006801:Humans; D007398:Interpersonal Relations; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011613:Psychotherapy; D011618:Psychotic Disorders / Q000628:therapy*; D012919:Social Behavior; D012934:Social Isolation; D014838:Volunteers; D000078329:Workforce