title: Serum screening for Down's syndrome. Keeping the concept of risk simple.
authors.forename: M
authors.initials: M
authors.lastname: Barrow
authors.forename: J F
authors.initials: JF
authors.lastname: Smith
authors.forename: C
authors.initials: C
authors.lastname: Stewart
mesh_terms: D003376:Counseling; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012307:Risk Factors