Serum screening for Down's syndrome. National policy would ensure consistency.
Reynolds
T
T
John
R
R
D003376:Counseling; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006291:Health Policy; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D013222:State Medicine; D006113:United Kingdom