Immunological interference with implantation.
D000818:Animals; D000941:Antigens; D000951:Antigens, Neoplasm; D010064:Embryo Implantation; D000939:Epitopes; D005260:Female; D006649:Histocompatibility Antigens; D006801:Humans; D007109:Immunity; D007110:Immunity, Active; D007112:Immunity, Maternally-Acquired; D007114:Immunization; D007165:Immunosuppression Therapy; D007519:Isoantigens; D010063:Ovum / Q000276:immunology; D011247:Pregnancy; D014184:Transplantation, Homologous
D000941:Antigens; D000951:Antigens, Neoplasm; D000939:Epitopes; D006649:Histocompatibility Antigens; D007519:Isoantigens