Simplified "three-step test" in rheumatoid arthritis.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000097:blood*; D005080:Exercise Test; D006384:Hemagglutination; D006386:Hemagglutination Tests; D010808:Physical Examination
ARTHRITIS, RHEUMATOID/blood; HEMAGGLUTINATION