-
Liver volume in trisomy 21 and euploid fetuses at 11 to 13 weeks.
Gielchinsky Y, Zvanca M, Minekawa R, Persico N, Nicolaides KH.
Prenat Diagn 2011;31:28-32. -
Ear length in trisomy 21 fetuses at 11-14 weeks of gestation.
Sacchini C, El-Sheikhah A, Cicero S, Rembouskos G, Nicolaides KH.
Ultrasound Obstet Gynecol 2003;22:460-3.