[Antenatal screening methods for chromosome 21 trisomy].
Päkkilä
M
M
TAYS:n naistenklinikka PL 2000, 33521 Tampere.
Niemimaa
M
M
Kirkinen
P
P
Ryynänen
M
M
D004314:Down Syndrome / Q000175:diagnosis* / Q000453:epidemiology; D005260:Female; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D012680:Sensitivity and Specificity; D013997:Time Factors