Visits by volunteers to chronic mute patients.
D000328:Adult; D000368:Aged; D002908:Chronic Disease; D006746:Hospital Bed Capacity, 500 and over; D006758:Hospital Volunteers; D006801:Humans; D007297:Inpatients / Q000523:psychology; D008875:Middle Aged; D009155:Mutism / Q000523:psychology / Q000628:therapy*