title: A mixed blessing.
authors.forename: P
authors.initials: P
authors.lastname: Holmes
mesh_terms: D015193:Chorionic Villi Sampling / Q000009:adverse effects* / Q000706:statistics & numerical data; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis / Q000209:etiology*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy