Erroneous blood typing due to polyagglutination.
D000017:ABO Blood-Group System; D000941:Antigens; D001789:Blood Group Antigens; D004912:Erythrocytes / Q000276:immunology; D005260:Female; D006384:Hemagglutination; D006801:Humans; D008875:Middle Aged
D000017:ABO Blood-Group System; D000941:Antigens; D001789:Blood Group Antigens