title: A, B, and H isoantigens in the human fetus.
mesh_terms: D001789:Blood Group Antigens; D001808:Blood Vessels / Q000196:embryology / Q000276:immunology; D004386:Duodenum / Q000196:embryology / Q000276:immunology; D004622:Embryo, Mammalian / Q000276:immunology*; D005260:Female; D005333:Fetus / Q000276:immunology*; D006649:Histocompatibility Antigens; D006801:Humans; D007104:Immune Adherence Reaction; D007421:Intestine, Small / Q000196:embryology / Q000276:immunology; D008046:Lip / Q000196:embryology / Q000276:immunology; D008297:Male; D010179:Pancreas / Q000196:embryology / Q000276:immunology; D010920:Placenta / Q000276:immunology; D012867:Skin / Q000196:embryology / Q000276:immunology; D013270:Stomach / Q000196:embryology / Q000276:immunology; D014566:Urogenital System / Q000196:embryology / Q000276:immunology
chemical_list: D001789:Blood Group Antigens; D006649:Histocompatibility Antigens