Placental immunology.
D000818:Animals; D005260:Female; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006801:Humans; D008431:Maternal-Fetal Exchange; D051379:Mice; D010920:Placenta / Q000276:immunology*; D011247:Pregnancy; D014327:Trophoblasts / Q000276:immunology
D006680:HLA Antigens; D006649:Histocompatibility Antigens