Second trimester screening for trisomy 21.
Osathanondh
R
R
Canick
J A
JA
Abell
K B
KB
Stevens
L D
LD
Palomaki
G E
GE
Knight
G J
GJ
Haddow
J E
JE
D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis