title: Intra- and interobserver reliability of umbilical vein blood flow.
mesh_terms: D001783:Blood Flow Velocity; D005260:Female; D047109:Fetal Development; D005865:Gestational Age; D006801:Humans; D015588:Observer Variation; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D014471:Umbilical Veins / Q000502:physiology*