Serum screening for Down's syndrome. Private screening is problematic.
Reynolds
T M
TM
D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D008403:Mass Screening; D011247:Pregnancy; D011296:Prenatal Diagnosis; D013222:State Medicine; D006113:United Kingdom