Prenatal screening for Down's syndrome.
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TL
Campbell
D000328:Adult; D000649:Amniocentesis; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D000509:alpha-Fetoproteins / Q000032:analysis*
D000509:alpha-Fetoproteins