Studies in prolonged pregnancy. I. Cord blood oxygen levels at delivery.
D036861:Delivery, Obstetric; D005260:Female; D005312:Fetal Blood; D006801:Humans; D010100:Oxygen / Q000097:blood*; D011247:Pregnancy; D011273:Pregnancy, Prolonged; D014470:Umbilical Cord
D010100:Oxygen
OXYGEN/in blood; PREGNANCY; UMBILICAL CORD