title: The 'naturally occurring' anti-E.
mesh_terms: D000017:ABO Blood-Group System; D000906:Antibodies / Q000032:analysis*; D001789:Blood Group Antigens; D003298:Coombs Test; D004912:Erythrocytes / Q000187:drug effects / Q000276:immunology; D005260:Female; D006801:Humans; D010206:Papain / Q000494:pharmacology; D011247:Pregnancy; D012204:Rh-Hr Blood-Group System
chemical_list: D000017:ABO Blood-Group System; D000906:Antibodies; D001789:Blood Group Antigens; D012204:Rh-Hr Blood-Group System; D010206:Papain