title: Safety of chorionic villus sampling.
authors.forename: M J
authors.initials: MJ
authors.lastname: Keirse
authors.forename: H H
authors.initials: HH
authors.lastname: Kanhai
authors.forename: J B
authors.initials: JB
authors.lastname: Gravenhorst
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology*; D001706:Biopsy / Q000009:adverse effects*; D002824:Chorionic Villi / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy