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Adrenal gland length in euploid and trisomy 18 fetuses at 11-13 weeks.
Gielchinsky Y, Zvanca M, Akolekar R, Calvo JR, Nicolaides KH.
Prenat Diagn 2011;31:773-7. -
Fetal heart rate at 10-14 weeks and birthweight.
Sebire NJ, Nayar R, Carvalho M, Soares W, Nicolaides KH.
BJOG 1997;104:1207-9.