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Prediction of outcome in dichorionic twin pregnancies at 6-10 weeks' gestation.
Papaioannou GI, Syngelaki A, Maiz N, Ross JA, Nicolaides KH.
Am J Obstet Gynecol 2011;205:3481-5. -
Placental volume in twin and triplet pregnancies measured by three-dimensional ultrasound at 11 + 0 to 13 + 6 weeks of gestation.
Wegrzyn P, Fabio C, Peralta A, Faro C, Borenstein M, Nicolaides KH.
Ultrasound Obstet Gynecol 2006;27:647-51.