title: Trisomy and D/G translocation mongolism in brothers.
mesh_terms: D000328:Adult; D002869:Chromosome Aberrations; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000209:etiology / Q000235:genetics*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D011123:Polyploidy; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious; D014314:Trisomy