The egg and immunology.
D000017:ABO Blood-Group System; D000818:Animals; D000941:Antigens; D006224:Cricetinae; D010064:Embryo Implantation; D005260:Female; D006648:Histocompatibility; D006801:Humans; D008297:Male; D051379:Mice; D010063:Ovum / Q000276:immunology* / Q000637:transplantation; D011247:Pregnancy; D051381:Rats; D012730:Sex Chromosomes; D012744:Sex Ratio; D013045:Species Specificity; D014181:Transplantation Immunology; D014184:Transplantation, Homologous
D000017:ABO Blood-Group System; D000941:Antigens