Studies of agglutination in rheumatoid arthritis.  II.  An immunological study of the factor in rheumatoid sera causing agglutination of sensitized erythrocytes.
D000371:Agglutination; D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D004912:Erythrocytes; D006801:Humans
ARTHRITIS, RHEUMATOID/immunology