Human O erythrocytes in the hemagglutination reaction for rheumatoid arthritis.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D004912:Erythrocytes; D006384:Hemagglutination; D006801:Humans; D007223:Infant; D007231:Infant, Newborn / Q000097:blood
ARTHRITIS, RHEUMATOID/immunology; HEMAGGLUTINATION; INFANT, NEWBORN/blood in