Antigens Duffy, Kell, Kidd, Lutheran and Xg a  on fetal red cells.
D001789:Blood Group Antigens; D003298:Coombs Test; D004912:Erythrocytes / Q000276:immunology*; D005260:Female; D005333:Fetus / Q000276:immunology*; D005865:Gestational Age; D006801:Humans; D007106:Immune Sera; D011247:Pregnancy; D014470:Umbilical Cord
D001789:Blood Group Antigens; D007106:Immune Sera