title: Chimaeric twins: why monochorionicity does not guarantee monozygosity.
authors.affiliation: Department of Obstetrics and Gynaecology, University of Melbourne, The Royal Women's Hospital, Parkville, Victoria, Australia. umstad@bigpond.net.au
authors.forename: Mark P
authors.initials: MP
authors.lastname: Umstad
authors.forename: Roger V
authors.initials: RV
authors.lastname: Short
authors.forename: Matthew
authors.initials: M
authors.lastname: Wilson
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Craig
mesh_terms: D002585:Cesarean Section; D002678:Chimera; D002823:Chorion; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic; D016216:Ultrasonography, Prenatal