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The duration of persistent abnormal ductus venosus flow and its impact on perinatal outcome in fetal growth restriction.
Turan OM, Turan S, Berg C, Gembruch U, Nicolaides KH, Harman CR, Baschat AA.
Ultrasound Obstet Gynecol 2011;38:295-302. -
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.