title: Competitive employment for persons with mental retardation: a follow-up six years later.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004651:Employment; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D008297:Male; D008875:Middle Aged; D012050:Rehabilitation, Vocational / Q000379:methods*