title: Prenatal diagnosis: new techniques, new questions.
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology; D000649:Amniocentesis / Q000009:adverse effects; D000013:Congenital Abnormalities / Q000209:etiology; D005260:Female; D030342:Genetic Diseases, Inborn; D006801:Humans; D008297:Male; D009436:Neural Tube Defects / Q000175:diagnosis; D009656:North America; D011247:Pregnancy; D011296:Prenatal Diagnosis; D018570:Risk Assessment; D012732:Sex Determination Analysis; D006113:United Kingdom; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins