Salvador, Joaquín Evolution of prenatal detection of neural tube defects in the pregnant population of the city of Barcelona from 1992 to 2006. [electronic resource] - Prenatal diagnosis Dec 2011 - 1184-8 p. digital Publication Type: Journal Article ISSN: 1097-0223 Standard No.: 10.1002/pd.2863 doi Subjects--Topical Terms: FemaleHumansInfant, NewbornNeural Tube Defects--diagnostic imagingPregnancyPregnancy TrimestersSpain--epidemiologyUltrasonography, Prenatal--trends