Nicked free beta-subunit and Down syndrome screening.
Palomaki
G E
GE
Haddow
J E
JE
D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000235:genetics*; D004314:Down Syndrome / Q000235:genetics*; D005819:Genetic Markers; D005821:Genetic Techniques; D005820:Genetic Testing / Q000379:methods*; D006801:Humans
D018997:Chorionic Gonadotropin, beta Subunit, Human; D005819:Genetic Markers