Two‐stage first‐trimester screening for trisomy 21 by ultrasound assessment and biochemical testing
Kagan, K. O. ; Staboulidou, I. ; Cruz, J. ; Wright, D. ; Nicolaides, K. H.
Ultrasound in obstetrics & gynecology, 2010-11, Vol.36 (5), p.542-547 [Periódico revisado por pares]Chichester, UK: John Wiley & Sons, Ltd
Texto completo disponível