Mild mental subnormality: social and epidemiolocal studies.
D001925:Brain Damage, Chronic / Q000175:diagnosis; D004522:Educational Status; D004739:England; D004777:Environment; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology*; D007360:Intelligence; D007859:Learning Disabilities / Q000175:diagnosis; D008297:Male; D009787:Occupational Medicine; D009790:Occupations; D012017:Referral and Consultation; D012572:School Health Services; D012923:Social Class; D012959:Socioeconomic Factors; D013663:Teaching; D014505:Urban Population