title: Therapeutic effectiveness of untrained volunteers with chronic patients.
mesh_terms: D000328:Adult; D001291:Attitude of Health Personnel; D002908:Chronic Disease; D005260:Female; D006778:Hospitals, Psychiatric; D006801:Humans; D008297:Male; D009042:Motivation; D011566:Psychiatric Aides; D011618:Psychotic Disorders / Q000628:therapy*; D012919:Social Behavior; D014838:Volunteers