title: Prenatal diagnosis of cystic fibrosis where single affected child has died: Guthrie spots and microvillar enzyme testing.
mesh_terms: D002824:Chorionic Villi / Q000201:enzymology*; D004796:Clinical Enzyme Tests; D003550:Cystic Fibrosis / Q000175:diagnosis* / Q000235:genetics; D004259:DNA-Directed DNA Polymerase / Q000032:analysis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis
chemical_list: D004259:DNA-Directed DNA Polymerase