-
Two-stage approach for risk estimation of fetal trisomy 21 and other aneuploidies using computational intelligence systems.
Neocleous AC, Syngelaki A, Nicolaides KH, Schizas CN.
Ultrasound Obstet Gynecol 2018;51:503-508. pdf -
Likelihood ratio for trisomy 21 in fetuses with tricuspid regurgitation at the 11 to 13 + 6-week scan.
Faiola S, Tsoi E, Huggon IC, Allan LD, Nicolaides KH.
Ultrasound Obstet Gynecol 2005;26:22-7.