Long-Term Outcome for Children Born After a First-Trimester Measurement of Increased Nuchal Translucency with a Normal Karyotype: A Retrospective Analysis - Axt-Fliedner, R.; Hartge, D.; Chiriac, A.; Krapp, M.; Berg, C.; Geipel, A.; Germer, U.; Gembruch, U. (Ultraschall in der Medizin - European Journal of Ultrasound, 2009)