title: Prenatal Tay-Sachs diagnosis by chorionic villi sampling.
mesh_terms: D000328:Adult; D002824:Chorionic Villi / Q000201:enzymology*; D002902:Chromosomes, Human, 16-18; D005260:Female; D006596:Hexosaminidases / Q000378:metabolism; D006801:Humans; D010920:Placenta / Q000201:enzymology*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D013661:Tay-Sachs Disease / Q000175:diagnosis*; D014314:Trisomy; D001619:beta-N-Acetylhexosaminidases
chemical_list: D006596:Hexosaminidases; D001619:beta-N-Acetylhexosaminidases