Aneuploidy and the older gravida: Which risk to quote.
D000328:Adult; D000649:Amniocentesis; D000782:Aneuploidy; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy; D012306:Risk