title: Letter: Rubella-antibody titres in rheumatoid arthritis.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000302:isolation & purification*; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000276:immunology*; D003429:Cross Reactions; D006801:Humans; D008875:Middle Aged; D012412:Rubella virus / Q000276:immunology*; D014777:Virus Diseases / Q000150:complications
chemical_list: D000914:Antibodies, Viral