Proof of foetal antigens entering the maternal circulation.
D000941:Antigens; D001686:Biological Phenomena; D005312:Fetal Blood; D005333:Fetus / Q000097:blood*; D010829:Physiological Phenomena; D011247:Pregnancy / Q000097:blood
D000941:Antigens
ANTIGENS; FETUS/blood in; PREGNANCY/blood in