[Prenatal studies of trisomy 21: triple test more efficient than age criterion].
Drenthe-Schonk
A
A
D003362:Cost-Benefit Analysis; D004314:Down Syndrome / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis / Q000191:economics; D000509:alpha-Fetoproteins / Q000032:analysis*
D000509:alpha-Fetoproteins