A comparative study of the exchange of the respiratory gases across the placenta.
D002245:Carbon Dioxide / Q000378:metabolism*; D005260:Female; D006801:Humans; D010100:Oxygen / Q000097:blood*; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy
D002245:Carbon Dioxide; D010100:Oxygen
CARBON DIOXIDE/metabolism; OXYGEN/in blood; PLACENTA/physiology