title: ABH blood group antigens during pregnancy and in women on hormonal contraceptives.
mesh_terms: D000017:ABO Blood-Group System / Q000276:immunology*; D003276:Contraceptives, Oral / Q000494:pharmacology*; D003278:Contraceptives, Oral, Hormonal / Q000494:pharmacology*; D004912:Erythrocytes / Q000187:drug effects; D005260:Female; D006801:Humans; D007519:Isoantigens / Q000276:immunology*; D011247:Pregnancy
chemical_list: D000017:ABO Blood-Group System; D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D007519:Isoantigens