title: Shift of the fetal sex ratio in hCG selected pregnancies at risk for Down syndrome.
authors.forename: N
authors.initials: N
authors.lastname: Leporrier
authors.forename: M
authors.initials: M
authors.lastname: Herrou
authors.forename: P
authors.initials: P
authors.lastname: Leymarie
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood*; D004314:Down Syndrome / Q000175:diagnosis* / Q000453:epidemiology; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D008423:Maternal Age; D011237:Predictive Value of Tests; D011247:Pregnancy / Q000097:blood*; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis; D011446:Prospective Studies; D012307:Risk Factors; D012744:Sex Ratio
chemical_list: D006063:Chorionic Gonadotropin; D004958:Estradiol