The hemagglutination test in rheumatoid arthritis.  I.  Use of red cell pattern as endpoint in the methods.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D006384:Hemagglutination; D006386:Hemagglutination Tests; D006801:Humans
ARTHRITIS, RHEUMATOID/immunology; HEMAGGLUTINATION