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Cardiac defects in chromosomally normal fetuses with abnormal ductus venosus blood flow at 10-14 weeks.
Matias A, Huggon I, Areias JC, Montenegro N, Nicolaides KH.
Ultrasound Obstet Gynecol 1999;14:307-10. -
Screening for chromosomal abnormalities at 10-14 weeks: the role of ductus venosus blood flow.
Matias A, Gomes C, Flack N, Montenegro N, Nicolaides KH.
Ultrasound Obstet Gynecol 1998;12:380-4.