TY  - GEN
AU  - Evans,Mark I
AU  - Galen,Robert S
TI  - Comparison of serum markers in first-trimester down syndrome screening
SN  - 0029-7844
PY  - 2007///0330
KW  - Biomarkers
KW  - blood
KW  - Chorionic Gonadotropin
KW  - Chorionic Gonadotropin, beta Subunit, Human
KW  - Down Syndrome
KW  - diagnosis
KW  - Female
KW  - Humans
KW  - Pregnancy
KW  - Pregnancy Trimester, First
N1  - Publication Type: Comment; Letter
UR  - https://doi.org/10.1097/01.AOG.0000257614.71418.4c
ER  -