title: Should fetal echogenic cardiac foci be concordant in monochorionic twin pregnancy?
authors.forename: W L
authors.initials: WL
authors.lastname: Lau
authors.forename: H Y
authors.initials: HY
authors.lastname: Tse
mesh_terms: D004314:Down Syndrome / Q000000981:diagnostic imaging* / Q000453:epidemiology; D004452:Echocardiography; D005260:Female; D005318:Fetal Heart / Q000000981:diagnostic imaging*; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011296:Prenatal Diagnosis / Q000379:methods; D015995:Prevalence; D014427:Twins; D016216:Ultrasonography, Prenatal