title: Letter: Rubella antibody titres in rheumatoid arthritis.
mesh_terms: D000914:Antibodies, Viral / Q000302:isolation & purification*; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000276:immunology*; D006801:Humans; D012412:Rubella virus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral