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Cervical length at 23 weeks in twins in predicting spontaneous preterm delivery.
Souka AP, Heath V, Flint S, Sevastopoulou I, Nicolaides KH.
Obstet Gynecol 1999;94:450-4. -
Intertwin disparity in fetal size in monochorionic and dichorionic pregnancies.
Sebire NJ, D'Ercole C, Soares W, Nayar R, Nicolaides KH.
Obstet Gynecol 1998;91:82-5. -
Screening for fetal abnormalities in multiple pregnancies.
Sebire NJ, Nicolaides KH.
Baillieres Clin Obstet Gynaecol 1998;12:19-36.