Russo, Melissa L A historical and practical review of first trimester aneuploidy screening. [electronic resource] - Seminars in fetal & neonatal medicine Jun 2014 - 183-7 p. digital Publication Type: Historical Article; Journal Article; Review ISSN: 1878-0946 Standard No.: 10.1016/j.siny.2013.11.013 doi Subjects--Topical Terms: AdultAneuploidyDown Syndrome--diagnosisFemaleHistory, 20th CenturyHumansPregnancyPregnancy Trimester, FirstPrenatal Diagnosis--historyUltrasonography, Prenatal