Aneuploidy of the chromosome G(21-22) autosomes. Current concepts.
D000782:Aneuploidy; D002648:Child; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D014314:Trisomy