Immunological aspects of trophoblast activity.
D000017:ABO Blood-Group System; D000818:Animals; D002822:Choriocarcinoma / Q000276:immunology; D005321:Extraembryonic Membranes / Q000378:metabolism*; D005260:Female; D006801:Humans; D051379:Mice; D010920:Placenta / Q000378:metabolism; D011247:Pregnancy
D000017:ABO Blood-Group System