title: Genetic testing: cfDNA screening for trisomy 21 tested in unselected pregnancies.
authors.forename: Orli G
authors.initials: OG
authors.lastname: Bahcall
mesh_terms: D004247:DNA / Q000032:analysis*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005820:Genetic Testing / Q000379:methods*; D059014:High-Throughput Nucleotide Sequencing; D006801:Humans; D048208:Nuchal Translucency Measurement; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D014314:Trisomy / Q000175:diagnosis*
chemical_list: D004247:DNA