title: Modified diagnostic criteria for twin-to-twin transfusion syndrome prior to 18 weeks' gestation: time to change?
authors.affiliation: Fetal Medicine Unit, St George's University of London & St George's University Hospitals NHS Foundation Trust, Molecular and Clinical Sciences Research Institute, London, SW17 0RE, UK.
authors.forename: A
authors.identifier: 0000-0003-2802-7670
authors.initials: A
authors.lastname: Khalil
mesh_terms: D000653:Amniotic Fluid / Q000000981:diagnostic imaging; D005260:Female; D005330:Fetofetal Transfusion / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D016104:Oligohydramnios / Q000000981:diagnostic imaging; D006831:Polyhydramnios / Q000000981:diagnostic imaging; D011247:Pregnancy; D059285:Pregnancy, Twin; D012015:Reference Standards