MOMs (multiples of the median) may know best: there are insufficient data to suggest that DADs (discriminant aneuploidy detection) are superior.
Reynolds
T M
TM
D000782:Aneuploidy; D003627:Data Interpretation, Statistical; D016002:Discriminant Analysis; D004314:Down Syndrome / Q000175:diagnosis* / Q000235:genetics; D006801:Humans; D008403:Mass Screening