Latent aneuploidy in father and grandfather of doubly aneuploid child: mongolism in a child with 48 chromosomes.
D000782:Aneuploidy; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D014314:Trisomy