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Clinical significance of first-trimester chorionic bumps: a matched case-control study.
Sana Y, Appiah A, Davison A, Nicolaides KH, Johns J, Ross JA.
Ultrasound Obstet Gynecol 2013;42:585-9. -
Association of placental T2 relaxation times and uterine artery Doppler ultrasound measures of placental blood flow.
Derwig I, Barker GJ, Poon LC, Zelaya F, Gowland P, Lythgoe DJ, Nicolaides KH.
Placenta 2013;34:474-9. pdf -
Association of placental perfusion, as assessed by magnetic resonance imaging and uterine artery Doppler ultrasound, and its relationship to pregnancy outcome.
Derwig I, Lythgoe DJ, Barker GJ, Poon LC, Gowland P, Yeung R, Zelaya F.
Placenta 2013;34:885-91. pdf -
Meta-analysis of second-trimester markers for trisomy 21.
Agathokleous M, Chaveeva P, Poon LC, Kosinski P, Nicolaides KH.
Ultrasound Obstet Gynecol 2013;41:247-61.