Sex and age trends in admissions to an institution for the mentally retarded, 1910-1959.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006760:Hospitalization; D006801:Humans; D007223:Infant; D008607:Intellectual Disability; D008297:Male; D008875:Middle Aged; D009329:Nebraska; D012723:Sex