Medical genetics.
D002824:Chorionic Villi; D004247:DNA / Q000235:genetics; D004992:Ethics, Medical; D005260:Female; D005817:Genetic Counseling; D005826:Genetics, Medical / Q000639:trends; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014463:Ultrasonography
D004247:DNA