Fetomaternal water exchange.
D000653:Amniotic Fluid / Q000502:physiology*; D001769:Blood; D005260:Female; D005333:Fetus / Q000502:physiology*; D005612:Freeze Drying; D006801:Humans; D008431:Maternal-Fetal Exchange; D009994:Osmolar Concentration; D011247:Pregnancy; D014469:Umbilical Arteries; D014471:Umbilical Veins; D014882:Water-Electrolyte Balance