title: Prenatal diagnosis--when and how?
authors.forename: L D
authors.initials: LD
authors.lastname: Platt
authors.forename: D E
authors.initials: DE
authors.lastname: Carlson
mesh_terms: D000328:Adult; D000649:Amniocentesis / Q000009:adverse effects; D015415:Biomarkers / Q000097:blood; D015193:Chorionic Villi Sampling / Q000379:methods; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*
chemical_list: D015415:Biomarkers