TY  - GEN
AU  - Barkai,G
AU  - Shaki,R
AU  - Pariente,C
AU  - Goldman,B
TI  - First trimester alpha-fetoprotein levels in normal and chromosomally abnormal pregnancies
SN  - 0140-6736
PY  - 1987///0918
KW  - Chromosome Aberrations
KW  - diagnosis
KW  - Chromosome Disorders
KW  - Down Syndrome
KW  - Female
KW  - Fetal Diseases
KW  - Humans
KW  - Pregnancy
KW  - blood
KW  - Pregnancy Trimester, First
KW  - Prenatal Diagnosis
KW  - alpha-Fetoproteins
KW  - analysis
N1  - Publication Type: Letter
UR  - https://doi.org/10.1016/s0140-6736(87)92401-9
ER  -