title: The vanishing twin: a major determinant of infant outcome in IVF singleton births.
abstract: This article attempts to assess the frequency of vanishing twins in assisted reproductive and spontaneously conceived pregnancies, including in-vitro fertilization (IVF), and its impact on the live-born surviving twin.
authors.affiliation: Juliane Marie Centre, University of Copenhagen, Rigshopitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark.
authors.forename: Anja
authors.initials: A
authors.lastname: Pinborg
authors.forename: Ojvind
authors.initials: O
authors.lastname: Lidegaard
authors.forename: Anders Nyboe
authors.initials: AN
authors.lastname: Andersen
mesh_terms: D002547:Cerebral Palsy / Q000209:etiology; D004200:Diseases in Twins / Q000000981:diagnostic imaging; D005260:Female; D005307:Fertilization in Vitro; D005327:Fetal Resorption / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D011247:Pregnancy; D011256:Pregnancy Outcome; D011261:Pregnancy Trimester, First; D011272:Pregnancy, Multiple; D011379:Prognosis; D016216:Ultrasonography, Prenatal