title: New developments in prenatal diagnosis.
mesh_terms: D002823:Chorion / Q000166:cytology; D004247:DNA / Q000032:analysis; D005260:Female; D005332:Fetoscopy; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods / Q000639:trends*; D012306:Risk; D014463:Ultrasonography; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins; D004247:DNA