"Prenatal Diagnosis." . . "Prenatal diagnosis." . "Down Syndrome diagnosis." . . "Down Syndrome. diagnosis." . "Dépistage génétique." . . "Genetic Screening." . . "Chorionic Gonadotropin analysis." . . "Diagnostic prénatal." . . . . "Syndroom van Down." . . "Syndrome de Down diagnostic." . . "Genetic Testing." . . "Human chromosome abnormalities Diagnosis." . . "Down's syndrome diagnosis." . . "Down Syndrome." . . "Gonadotrophine chorionique analyse." . . "Prenatale diagnose." . . "Down's syndrome." . . "Down-Syndrom." . . . . "Aufsatzsammlung" . . . "Screening for Down's syndrome" . . . . . . . . . . . . . . . . . . . "Screening for Down syndrome" . . . . . . . . . . . . . "Gonadotropins, Chorionic analysis." . . "Gonadotropins, Chorionic. analysis." . "Reihenuntersuchung." . .