The sheep erythrocyte agglutination test in rheumatoid arthritis.
D000371:Agglutination; D000818:Animals; D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D004912:Erythrocytes; D006384:Hemagglutination; D006386:Hemagglutination Tests; D012756:Sheep
ARTHRITIS, RHEUMATOID/immunology; HEMAGGLUTINATION