title: Mitral gap at 11 + 0 to 13 + 6 weeks: neither marker of trisomy 21 nor artifact.
authors.forename: M A
authors.initials: MA
authors.lastname: Zoppi
authors.forename: R M
authors.initials: RM
authors.lastname: Ibba
authors.forename: C
authors.initials: C
authors.lastname: Axiana
authors.forename: R
authors.initials: R
authors.lastname: Contu
authors.forename: G
authors.initials: G
authors.lastname: Monni
mesh_terms: D016477:Artifacts; D004314:Down Syndrome / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008943:Mitral Valve / Q000000981:diagnostic imaging* / Q000196:embryology; D048208:Nuchal Translucency Measurement; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000379:methods*