title: Letter: Rubella-antibody titres in rheumatoid arthritis.
mesh_terms: D000914:Antibodies, Viral / Q000302:isolation & purification*; D000917:Antibody Formation; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D012412:Rubella virus / Q000276:immunology*; D013582:Synovial Fluid / Q000276:immunology
chemical_list: D000914:Antibodies, Viral; D007074:Immunoglobulin G; D007075:Immunoglobulin M