title: Teaching sign language to the deaf mentally handicapped.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003638:Deafness / Q000150:complications / Q000534:rehabilitation*; D004495:Education of Persons with Intellectual Disabilities; D004739:England; D006778:Hospitals, Psychiatric; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D008369:Manual Communication; D008875:Middle Aged; D012813:Sign Language