140 years of Danish studies on the prevalence of mental retardation.
Dupont
A
A
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D003718:Denmark / Q000453:epidemiology; D004185:Disability Evaluation; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000453:epidemiology* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D012017:Referral and Consultation / Q000639:trends; D012424:Rural Population; D012922:Social Change; D014505:Urban Population