title: A combined survey of chronic disability in industrial employees.
mesh_terms: D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D004185:Disability Evaluation; D006233:Persons with Disabilities; D006801:Humans; D008297:Male; D008875:Middle Aged; D009787:Occupational Medicine; D013223:Statistics as Topic; D006113:United Kingdom