The pouch gas of the Virgina opossum (Didelphis virginiana).
D000818:Animals; D002245:Carbon Dioxide / Q000032:analysis*; D005314:Embryonic and Fetal Development; D005260:Female; D005333:Fetus / Q000378:metabolism / Q000502:physiology*; D009893:Opossums / Q000502:physiology*; D010100:Oxygen / Q000032:analysis*; D010477:Perfusion; D011247:Pregnancy; D012039:Regional Blood Flow; D012119:Respiration; D012879:Skin Physiological Phenomena
D002245:Carbon Dioxide; D010100:Oxygen