TY  - GEN
AU  - Summers,Anne M
AU  - Huang,Tianhua
AU  - Meier,Chris
AU  - Farrell,Sandra A
TI  - Contingent screening for Down syndrome
SN  - 0197-3851
PY  - 2006///0106
KW  - Down Syndrome
KW  - diagnosis
KW  - Female
KW  - Humans
KW  - Pregnancy
KW  - Prenatal Diagnosis
KW  - methods
KW  - Risk
N1  - Publication Type: Comment; Letter
UR  - https://doi.org/10.1002/pd.1245
ER  -