Serological activity of red cells and saliva of blood groups A1 AND A2.
D000017:ABO Blood-Group System; D000328:Adult; D044466:Asian People; D004912:Erythrocytes / Q000276:immunology*; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007564:Japan; D012463:Saliva / Q000276:immunology*
D000017:ABO Blood-Group System