[Echographic sutyd of the dynamic phenomena of labor].
D005260:Female; D005318:Fetal Heart / Q000502:physiology; D005333:Fetus / Q000502:physiology*; D006801:Humans; D007746:Labor Presentation; D007743:Labor, Obstetric; D011247:Pregnancy; D014463:Ultrasonography; D014590:Uterine Contraction
Estudio ecográfico de los fenómenos dinámicos del parto.