title: Fetal DNA in maternal plasma: the plot thickens and the placental barrier thins.
authors.forename: D W
authors.initials: DW
authors.lastname: Bianchi
mesh_terms: D004247:DNA / Q000097:blood*; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy
chemical_list: D004247:DNA