The biochemical composition of amniotic fluid and of maternal and fetal blood at various periods of pregnancy.
D000653:Amniotic Fluid / Q000737:chemistry*; D005260:Female; D005312:Fetal Blood; D005333:Fetus; D006801:Humans; D011247:Pregnancy / Q000097:blood
AMNIOTIC FLUID/chemistry; FETUS; PREGNANCY/blood