Lees C, Albaiges G, Deane C, Parra M, Nicolaides KH. Assessment of umbilical arterial and venous flow using colour Doppler,. Ultrasound Obstet Gynecol 1999; 14: 250-255
Tchirikov M, Rybakowski C, Hüneke B, Schröder HJ. Blood flow through the ductus venosus in singleton and multifetal pregnancies and in fetuses with intrauterine growth retardation. Am J Obstet Gynecol 1998; 178: 943-949
Barbera A, Galan HL, Ferrazzi E, Rigano S, Jzwik M, Battaglia FC, Pardi G. Relationship of umbilical vein blood flow to growth parameters in the human fetus. Am J Obstet Gynecol 1999; 181: 174-179
Hadlock FP, Harrist RB, Martinez-Poyer J. In utero analysisof fetal growth: a sonographic weight standard. Radiology 1991; 181: 129-133
Clavero JA, Negueruela J, Ortiz L, De Los Heros JA, Modrego SP. Blood flow in the intervillous space and fetal blood flow. Am J Obstet Gynecol 1973; 116: 340-346
Eik-Nes SH, Brubak AO, Ulstein MK. Measurement of human fetal blood flow. Br Med J 1980; 280; 283-284
Jouppila P, Kirkinen P. The role of fetal blood flow measurements on obstetrics. In Kurjak A, ed. Measurements of fetal blood flow. CIC, Rome 1983
Gill RW, Kossoff G, Warren PS, Garrett WJ. Umbilical venous flow in normal and complicated pregnancy. Ultrasound Med Biol 1984; 10: 349-363
Künzel W, Jovanovic V, Grüssner S, Colling T. Blood flow velocity in the fetal abdominal aorta and in the umbilical artery in uncomplicated pregnancies. Eur J Obstet Gynecol Reprod Biol 1992; 47: 31-40
Boito S, Struijk PC, Ursem NTC, Stijnen T, Wladimiroff JW. Umbilical venous volume flow in the normally developing and growth-restricted human fetus. Ultrasound Obstet Gynecol 2002; 19: 344-349
