title: Maternal serum beta-hCG levels in screening for Down syndrome are higher in singleton pregnancies achieved with ovulation induction and intrauterine insemination than in spontaneous singleton pregnancies.
authors.forename: R
authors.initials: R
authors.lastname: Räty
authors.forename: A
authors.initials: A
authors.lastname: Virtanen
authors.forename: P
authors.initials: P
authors.lastname: Koskinen
authors.forename: L
authors.initials: L
authors.lastname: Anttila
authors.forename: P
authors.initials: P
authors.lastname: Laitinen
authors.forename: A
authors.initials: A
authors.lastname: Tiitinen
authors.forename: U
authors.initials: U
authors.lastname: Ekblad
mesh_terms: D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007315:Insemination, Artificial; D008403:Mass Screening; D010062:Ovulation Induction; D011247:Pregnancy / Q000097:blood*; D012016:Reference Values
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human