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Maxillary gap at 11-13 weeks' gestation: marker of cleft lip and palate.
Chaoui R, Orosz G, Heling KS, Sarut-Lopez A, Nicolaides KH.
Ultrasound Obstet Gynecol 2015;46:665-9. pdf -
Three-dimensional sonographic description of the fetal frontal bones and metopic suture.
Faro C, Benoit B, Wegrzyn P, Chaoui R, Nicolaides KH.
Ultrasound Obstet Gynecol 2005;26:618-21. -
Three-dimensional sonographic description of abnormal metopic suture in second- and third-trimester fetuses.
Chaoui R, Levaillant JM, Benoit B, Faro C, Wegrzyn P, Nicolaides KH.
Ultrasound Obstet Gynecol 2005;26:761-4.