The relationship between cytogenetic constitution, physical stigmata, and intelligence in Down's syndrome.
D000015:Abnormalities, Multiple; D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002904:Chromosomes, Human, 21-22 and Y; D003409:Congenital Hypothyroidism; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D008297:Male; D008875:Middle Aged; D009030:Mosaicism; D010290:Parents; D014314:Trisomy