Placental transfer of maternal erythrocytes into the fetal circulation.
D004912:Erythrocytes; D005260:Female; D005312:Fetal Blood; D005333:Fetus / Q000097:blood*; D006801:Humans; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy
ERYTHROCYTES; FETUS/blood; PLACENTA/physiology