Which contingent sequential screening protocol?
Wright
Dave
D
Bradbury
Ian
I
Benn
Peter
P
Cuckle
Howard
H
Ritchie
Karen
K
D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005865:Gestational Age; D006801:Humans; D048208:Nuchal Translucency Measurement; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*