[Serum studies with the ultracentrifuge, electrophoresis and the so-called latex rapid test in primary chronic polyarthritis].
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000097:blood*; D004586:Electrophoresis; D007840:Latex; D007841:Latex Fixation Tests
D007840:Latex
ARTHRITIS, RHEUMATOID/blood