Intrauterine transfusions.
D000017:ABO Blood-Group System; D001787:Blood Group Incompatibility; D001805:Blood Transfusion, Intrauterine; D004899:Erythroblastosis, Fetal / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy
D000017:ABO Blood-Group System