Changes in the electrolytes, urea and osmolality of the amniotic fluid with advancing pregnancy.
D000653:Amniotic Fluid / Q000032:analysis*; D001806:Blood Urea Nitrogen; D002712:Chlorides / Q000032:analysis* / Q000097:blood; D005260:Female; D005865:Gestational Age; D006801:Humans; D009994:Osmolar Concentration; D011188:Potassium / Q000032:analysis* / Q000097:blood; D011247:Pregnancy; D012964:Sodium / Q000032:analysis* / Q000097:blood; D014508:Urea / Q000032:analysis*
D002712:Chlorides; D014508:Urea; D012964:Sodium; D011188:Potassium