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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 -
Assessment of umbilical arterial and venous flow using color Doppler.
Lees C, Albaiges G, Deane C, Parra M, Nicolaides KH.
Ultrasound Obstet Gynecol 1999;14:250-5.