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Fetal mild hydronephrosis and chromosomal defects: relation to maternal age and gestation.
Snijders RJ, Sebire NJ, Faria M, Patel F, Nicolaides KH.
Fetal Diagn Ther 1995;10:349-55. -
Assessment of fetal compromise by Doppler ultrasound investigation of the fetal circulation: arterial, intracardiac and venous blood flow velocity studies.
Hecher K, Campbell S, Doyle P, Harrington K, Nicolaides KH.
Circulation 1995;91:129-38.