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The role of uterine artery Doppler in predicting adverse pregnancy outcome.
Papageorghiou AT, Yu CK, Nicolaides KH.
Best Pract Res Clin Obstet Gynaecol 2004;18:383-96. -
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.