A serum precipitable hemagglutinating factor in rheumatoid arthritis.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000097:blood*; D006384:Hemagglutination; D006386:Hemagglutination Tests; D015985:Precipitating Factors
ARTHRITIS, RHEUMATOID/blood in; HEMAGGLUTINATION