title: Prenatal screening for trisomy 18. Most die before or just after birth.
authors.forename: M C
authors.initials: MC
authors.lastname: Macintosh
authors.forename: T
authors.initials: T
authors.lastname: Chard
mesh_terms: D002887:Chromosomes, Human, Pair 18; D005260:Female; D006801:Humans; D015994:Incidence; D007621:Karyotyping; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014314:Trisomy / Q000175:diagnosis*