title: Risk of Down's syndrome and amniocentesis rate.
authors.forename: K
authors.initials: K
authors.lastname: Spencer
authors.forename: P
authors.initials: P
authors.lastname: Carpenter
mesh_terms: D000649:Amniocentesis / Q000523:psychology*; D006063:Chorionic Gonadotropin / Q000097:blood; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D010342:Patient Acceptance of Health Care; D011247:Pregnancy; D012306:Risk; D012307:Risk Factors
chemical_list: D006063:Chorionic Gonadotropin