title: Which prenatal screening protocol?
authors.forename: M A
authors.initials: MA
authors.lastname: Ferguson-Smith
mesh_terms: D000649:Amniocentesis / Q000379:methods; D000782:Aneuploidy; D015415:Biomarkers / Q000032:analysis; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D005865:Gestational Age; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008423:Maternal Age; D011247:Pregnancy; D011264:Pregnancy Trimesters; D011296:Prenatal Diagnosis / Q000379:methods*
chemical_list: D015415:Biomarkers