title: Sex chromosome aneuploidy and parental age.
mesh_terms: D000293:Adolescent; D000328:Adult; D000782:Aneuploidy; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D008423:Maternal Age; D008540:Meiosis; D008875:Middle Aged; D008962:Models, Theoretical; D009030:Mosaicism; D010290:Parents; D012730:Sex Chromosomes