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Frontomaxillary facial angle in fetuses with spina bifida at 11-13 weeks.
Lachmann R, Picciarelli G, Moratalla J, Green N, Nicolaides KH.
Ultrasound Obstet Gynecol 2010;36:268-71. -
Fetal middle cerebral artery peak systolic velocity in the investigation of non-immune hydrops.
Hernandez-Andrade E, Scheier M, Dezerega V, Carmo A, Nicolaides KH.
Ultrasound Obstet Gynecol 2004;23:442-5.