title: Monozygotic twins: chorionicity and more.
authors.forename: Nancy L
authors.initials: NL
authors.lastname: Segal
mesh_terms: D002823:Chorion / Q000473:pathology; D005260:Female; D006801:Humans; D009030:Mosaicism / Q000196:embryology; D016133:Polymerase Chain Reaction / Q000379:methods; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012732:Sex Determination Analysis / Q000379:methods*; D014424:Turner Syndrome / Q000175:diagnosis* / Q000473:pathology; D014430:Twins, Monozygotic / Q000502:physiology*