Non-echogenic nuchal oedema as a marker in trisomy 21 screening.
M M
MM
van Zalen-Sprock
J M
JM
van Vugt
H P
HP
van Geijn
D004314:Down Syndrome / Q000000981:diagnostic imaging*; D004487:Edema / Q000000981:diagnostic imaging; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D009333:Neck; D011247:Pregnancy; D016216:Ultrasonography, Prenatal