title: Second-trimester sonographic soft markers: what can we learn from the experience of first-trimester nuchal translucency screening?
authors.forename: T K
authors.initials: TK
authors.lastname: Lau
authors.forename: M I
authors.initials: MI
authors.lastname: Evans
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D048208:Nuchal Translucency Measurement / Q000379:methods*; D011247:Pregnancy; D011262:Pregnancy Trimester, Second